Thanks for the welcome, this is a subject that gets me debating hotly and often :D usually I am much more easy going, been browsing for awhile but felt no need to post till now.
héhé yep . But i've the idea there is a confusion in his post between DLC and expansion. While DLC is about sales (which he pointed out right), expansion is more about telling more of the story. And this is probably why we hope for a sequel to expand the story. Or maybe, Karrade, you should see POE2 as a big, large DLC of POE1, like BG2 would have been for BG1. 5 expansions in a RPG? i've never seen this. And don't want to. 5 DLC, i saw it. Was not good though...
In the battle of ideas, I aspire to cannon fodder status, but if my fate is to rush headlong into combat only to feed the mortars, so be it. At least I can add my tiny voice to the volume of folks pushing for one opinion, and if there's one opinion and only one I could choose at this point, it would be to let the design team straighten out the narrative and trust them. That's the hill where I'd die. Of course, you don't actually die in forum battles, so I'm still going to push for a new location with a different character and paced so that the epic (whatever that is) tale can be spread out over a longer period of time and much more content. Leave room in the story so that the xpacs for Pillars two extend the story out rather than injected into the fatty tissue in the middle, and then leave the end so that the big reveal can come in Pillars 3.
You've not said why. You can tell me I'm wrong forever, but you've not actually said why 3 expansions would be bad, or 5 for that matter. I could list RPG's that have had 5 expansions but that's not the point we are talking about pillars of eternity and more importantly, its current DLC. Is it worth it? Is it selling? If the answer to that is yes, and its been yes twice, would a third be worth it? It really is that simple.
Seeing the sequel as the next DLC is sadly not the case. You've got 3 years dev time minimum for the release for it to be any good, a brand new cast, setting and will likely introduce different mechanics making it a sequel, not DLC. A sequel is a gamble, its more of a gamble the more it strays from the established formula, and make no mistakes you'll get complainers if it doesn't take chances to bring in new systems because it'll be called a copy.
On a personal note I love the DLC model, I will defend it to the end of time, and my favorite games have a high amount of it, because it lets me pick and choose what I want in the game and don't want, being a modder at heart I love it. I don't feel the complusion to buy the DLC I have no desire to play, or don't value at the price its listed at, so I get the best of both worlds and devs get feedback on what's worth making as DLC. But back to pillars, can they nail a second successful game, sure, if this is anything to go by i'd give good odds. Will you like it personally as much, maybe, it really is a maybe folks. Will you be around in three years to care? Maybe.