Well I think we all hope that with Sharon being prepared to call in help skalds and C coming over and showing interest in his visions we will get some of that soon and maybe hot sex scene with C and/or Sharon thrown in as well. Sharon might feel she needs to up her game after meeting mommy and finding out she is way more of a threat in many ways as she expected.
On the other hand I suspect most of us at the moment expect what lurks in the cave to be the big bad or that VG is or even both and that we might have to choose sides or worse somehow help to stop both. Well if that is true we have to go through more first before the apocalypses happens in chapter 5 and devs will likely want to keep a few twists for last episodes. So I doubt all will be disclosed or settled with the thingy in the cave already in near future.
Arigon, be less sure.
Remember first though this world is based partly on VTM, it is no VTM game. So we might have more of an Anne Rice story in the end. More importantly, this is an adult game with LI's and those have some rules, like some sort of ending with each LI. Which since as far as I know devs did not deny plans of a possible continuation of the series always gives problems with what is canon ending you use for that if give the possibility to kill of too many main LI's or endings where you end with one antagonizes others too much.
Do not forget especially Ptolemy is quite experienced by now and will be well aware of that problem if wants to leave option open to make more series with this MC.
Further in Li games, killing them off is considered bad form
, is it unheard of, nope but most of times it are the side characters that die and especially not the bloodbath you predict or even worse as you predict and all die so you can start second series cleanly.
. This is not only a vampire game, so the rules of other genres will likely have an impact as well.