i'll have give my toughts about all of this:
1) I 100% agree with the idea of Lab Zero and Mike moving on to do something else, something new and taking their sweet time before or while doing it, they all deserve some good rests after so much effort that has been put into this magnificent game, i feel like Skullgirls was the first big step into a glorious future, i'll give my full support to whatever new project they come up with.
2) I don't agree with the idea of Lab Zero doing another IGG, they are well past that kind of thing by now, if one happens it should be driven by us, the community, rather than Lab Zero.
3) Just like a few others, while i do agree with moving on from Skullgirls, i still feel some concerns about the future of the game, i just don't want Skullgirls to be forgotten in the past, i can accept it being "completed", "done, "finished" etc, but not with it being forgotten with time and left behind by the community, like Lab Zero makes something new, most of the community moves onto it while forgetting Skullgirls behind and to the point they don't even play it or care for it anymore, that's what i fear.
Well, i finally got that out of my chest, my best wishes to the entire Lab Zero team, i'll never be able to thank you all enough for this amazing game, easily one of my favorites of all time with one of the best communities i've had the pleasure to be part of.