What exactly do you mean with the little screentime?
I know there is never enough Bella (or Jill) for me but can't complain for what we allready got.
Getting out content for 5 LIs is hard but it's the way he goes about it that makes it that way, i think Maya and Josy take most of the time out of any episode with free roams here and there which leaves little time for everyone else. Bella's content always seems to be connected with Jill and it makes it seem like she doesn't really have anything other than that in her life. Bit sad if you ask me
I'm not giving up hope but i honestly don't see how is he going to fit M&J threesome, probably Sage sex scene from first preview, Jade thing, freeroam and DNG plus whatever else i missed and a big scene for Bella? a bit too much but maybe i'm wrong. Maybe not a fake date but will probably be a date that will not result on anything major because most of Bella's time will be spent on babysiting Jill
What i said above in my reply to Felice.
Bella is definitely the LI with less time on stage among the LIs, even than Josy who was not always at the BR. at the beginning she was practically a wild card inserted a bit where it happened (she finds MC without clothes, she hosts Cathe after the clutch...), or always at Jill's side, in a role that I still find very hypocritical...
I don't think we'll have D&G again yet, but I don't think anyone can take away a few good pages from the best seller written by Lynette...
for the sex itself there is always room, at the end the halloween party will be just a container of other events, then alternatively there will be Jade and (maybe) the threesome, the sex with Sage i don't think it will be a particularly important moment (forgive me Sage) it could addiruttra happen at the party.
I believe that the emotional center of this second season has been Jill, so her conclusion will be an inside or outside, and it may be that the outside (always to be seen how) starts the real story with Bella now free of this psychological burden (to start)