Oh, sorry, I think I fell asleep for a year or two?
Gonna throw my thoughts in the ring here, First and foremost, I'm incredibly excited to see what this evolves into. I believe the fandom should be in the mindset that anything we get should not lead to disappointment. At the very very most, bionicle returns in some fashion, a "G3" of some sort, at the very very least, we get some awesome bionicle concept art from faber, and there's many avenues in between those two extremes. The fact that we have Christian Faber and most likely Cryoshell working on something having to do with canisters, robots, and mystery means this is the closest thing to the original BIONICLE we've received since 2010, and even if that only takes the form of artwork, the fans can appreciate that.
There's been a lot of discussion I've read about if the concepts of environmentalism should be present in a story like Bionicle. I'd argue that given that G1 revolved around the broad concept of medicine inside of a dying body helping to heal, something special to Faber at the time, should be evidence in itself. The fact that he's so passionate about the environment, seen through various IG posts and rebel nature, means that if this man can twist a medicine based concept into an intriguing story, he can certainly do the same with other concepts. Think about it, do we even really WANT a retelling of the concepts of G1 again? It's been covered, and if Bionicle is to truly evolve, it needs to encompass new ideas (looking at you G2)
Now, as for speculation on the art itself! I really do dig the parallelism to the first comic we ever got, it's hard to say if we're looking at a similar idea of a toa of ice waking up among his element or not. It's also hard to tell if all this concept art is hinting at an entire setting encased in ice or if this is simply a snippet of a new island. To me personally, a lot of the art looks like there's steam coming from the canister, and melting ice, wouldn't it be cool to kickstart this theme of environmental urgency by showing, say, a toa of fire waking up, melting the ice around him without realizing the consequences? Just throwing ideas out
Anywho, I expect Faber to continue creating awesome art, and am unsure and excited to see how Cryoshell fits into this.