I think the most important thing to keep in mind is transitioning to next year's LCPL, where we will definitely have 10 slots. If we add none of these, we will have 4 main gen instead of 3 next year (unless we add one of them at that point). If we add two of these, we will presumably have to choose which one stays and which one goes - do the playerbases of these tiers want that pressure?
I bias toward either maintaining 8 slots, adding SV4 + ADV, or ADV + DLC. I think that ADV and DLC add the most in terms of people who might not otherwise participate signing up in comparison to LC UU. Nothing against UU and this is not about playerbase quality, it's just that most of the UU people would just be playing SV, an oldgen or supporting if not playing UU.
Seconding this as far as UU is concerned. It feelt like mainers in this thread agree with it so far, so it should be fine.
If I had to rank the formats I think would work best, it'd probably be:
1) 10 slots with ADV + DLC
2) 8 slots status quo
3) 10 slots including another SV slot
Reasoning would be I have found the SV pool to be very fun and competitive in LCPL last year, it's something we should be proud of. This without any major snubs as well, at least in my opinion. I cannot say the exact same about last LCBC, with four starting slots, though. The pool was by no means
bad, but three starting slot remains plenty fine and a sweet spot for CG tiers. Making it four feels unnecessary and even counterproductive if we are looking at competitiveness as relevant factor in the pool(s).
ADV LC and DLC are also two healthy and vital communities nowadays. They are both played a bunch on-site already, more than some others. And they both have some very high level players among their community members, in my opinion. I don't know how many of them would be missing the tounament without this representation, but i don't think it's relevant, both tiers deserve it hence my support as first option. I'm aware of the format issue we will have in this case come Gen 10, but I think members of said communities would sooner feel happy than the pressure Tazz mentioned. It's better to be represented once than never, do we agree?
I do empathize with what Fille and Lily brought up though. As a person who manages a lot, I know when you wanna do everything to win (as it should be), it is hard and draining to do optimally. Especially when some tiers get added that at times, can feel like "a separate island" compared to the others. Hence I'd also be fine with status quo, that's my second preference. It's a plenty tested format and it has worked well for YEARS. There's just a considerable gap in my mind between how worth using I consider first two options versus third.
1 > 2 >>>> 3 if that's a more clear explanation.