Transformers Prime Season 2 Loose Ends

SPOILER WARNING!

Last Friday Transformers Prime Episode 52 "Darkest Hour" aired and oh 
my god, wow. This is the most epic season finale of all 
Transformers animation history. Episode 52 beats Beasts Wars Season 
2 finale by miles. With the apparent defeat of the Autobots and the fate 
of both Optimus Prime and Wheeljack unknown, the tension and 
apex of season 2's 26 episode story arc was a masterful climax.

That being said I started thinking a lot about all the individual story strands that make up the tapestry of Season 2 and while I'm was super stoked with the finale and a handful of individual episodes (my favs include Crossfire, Armada, Toxicity, and Out of the Past), the bulk of the season had a lot of 
unanswered and superfluous story arcs. Below are my top ambiguous 
questions that were not answered in the shows finale.

1 - Insecticon Swarm - In episode 7 "Crossfire", Arachnid stumbles on what looks like several hundred stasis pods housing Insecticons. She wasted no time in employing her new army to assault Megatron and his base warship the Nemesis. The episode never really explained why the Insecticons were on Earth or who sent them. I doubt they were part of Alpha Trion's shipment of legendary Iacon relics and keys. Where did they come from and what purpose did they originally have?  

Additionally, the first few appearances of the Insecticons hyped them up 
as brutal, primal, and very deadly combatants. Once Arachnid was 
defeated and Megatron took control of the Insecticon swarm almost all the 
Insecticons turned into cannon fodder, with the exception of Hard Shell. 
Why did they get nerfed so drastically?

2 - Airachnids Fate - Airachnid was a formidable Decepticon during late season 1 and early season 2. With Starscream being outcasted by Megatron, Airachnid took up the mantle of first lieutenant and primary political antagonist stirring up deceit in the Decepticon ranks. This all lead up to her overstepping her boundaries in  episode 7 "Cross Fire" and Megatron ordering her execution. After she killed Breakdown and escaped Dreadwing, she stumbled on a nest of Insecticons (please see 1 from above) and quickly employs them to take out Megatron enforce. 
Unfortunately for her, she  was finally defeated by a quick witted 
Arcee and frozen in a Insecticon Stasis Pod. It's shown that the Stasis Pod 
housing her is reclaimed and stored in the Autobot Vault in their secret base. 

During the final Iacon Key arc, Starscream raids the vault for the Iacon Keys. 
You would think he would have seen her there. One would suspect he 
would have killed her outright for her prior treachery (she ordered her first 
Insecticon to eviscerate him after all). Even if he was too much in a hurry to 
acknowledge her, they should have at least showed that she was still there. 
This all leads to to episode 52 "Darkest Hour". The Nemesis destroys the 
Autobot base, seemingly demolishing the entire mountain range the base 
was embedded in. Was Arachnid vaporized or is she still in stasis buried 
under the massive debris of a collapsed mountain?

3 - Iacon Relics (Weapons) - The Iacon Relic story arc was introduced in episode 12 and lasted throughout until the season 2 finale (episode 26). While the relic's possession changed sides several time, the bulk of the legendary weapons sent to Earth by Alpha Trion ended up in Autobot hands. In episode 25 "Regeneration", the Decepticons hold the Earth children hostage and the Autobots surrender their weapons. Prime goes on a rampage after seeing Megatron attempting to destroy the Earth and reclaims the Star Saber to destroy the Omega Lock. Were the remaining Iacon relics recovered by the Autobots before they 
retreated to Earth? Also, did the Forge of Solus Prime survive the 
obliteration of the Autobot base? The forge has the ability to craft any 
weapon or apparatus (including a fully working Space Bridge, the Star 
Saber, and Dark Energon Saber) so the relic is probably the most 
powerful item in all of Transformers Prime universe. It would suck if it 
was used as a throw away plot device.

4 - Cylas Fate - Cylas lost is body when Optimus Prime destroyed MECHS' Nemesis Prime. MECH saved Cylas by embedding him in the husk of the deceased Decepticon Breakdown in episode 19 "The Human Factor". Cylas then turns on MECH and tried to join the Decepticons. After losing his satellite laser weapon, Megatron turns on Cylas and Cylas is incapacitated and dragged off to Knockout's lab for "study". So what happened to Cylas? Is he a prisoner on the Decepticon warship Nemesis or has he been dissected for the good of Deception science?

5 - Optimus Primes Fate - With the end of season 2, Optimus Prime chose to stay behind and cover the Autobots space bridge evacuation by destroying the bridge after Ratchet leaves. Megatron obliterates the entire mountain range where the Autobot base stood. The aftermath shows Optimus Primes still hand jutting out of a pile of rubble. The million dollar season 3 question is "Did Optimus Prime die at the end of season 2?" We'll have to wait till next year to find out!

Honorary mention goes to Wheeljack and Shockwave. Both characters were last seen in Season 2 taking severe damage (Wheeljack crashes in his Jack Hammer ship after being shot down by Starscream and Shock wave was left blinded and wounded within the energy of the space bridge). Thanks to New York Comic-con 2013 and the Beast Hunters assets released, we know Shockwave is alive and well. He is seen in the teaser trailer introducing the Ultimate Autobot Killer Predaking. We can also safely assume Wheeljack is fine since Hasbro released images of his next iteration Deluxe class toy.

Overall, these plot gaffs do bother me but they don't provide substantial logic leaps that hinder the enjoyment of season 2 as a whole. I'm off to rewatch  the entire thing over again and hopefully they will add some behind the scenes info to enlighten these unanswered questions when the Bluray comes out later this year. Let me know what you think?

PS. Smokescreen and the kids still suck. Dreadwing, Hard Shell, and Breakdown were weak characters and deserved to die. After seeing Cliff Jumper in "Out of the Past" I really think killing him in season 1, episode 1 was a HUGE mistake! Sigh.