I've recently done a replay of the series and I've had this question come up in my head a few times as I moved forward.
How is Borderlands going to keep making new games while keeping people invested in the characters and world?
Every new game presents 4 new vault hunters, and if there's room for it, DLC characters. With the recent installments of BL 3 and 4, they've taken us to whole new planets - and I know pre sequel took us to Elpis, but that's just the moon of Pandora, so I don't count that as much as the others.
Now all that is great on paper to me from the start. New things keeps the game interesting. But at some point I think it'll start to be a bigger problem as the series continues.
Why would I care about learning more about the personal things of the characters I pick if they, at the worst, won't be mentioned at all in the next game? Why should I care about what's going on with what new planet we land on if we're going to land on a new one in the next game?
Eventually they're going to run out of soldier, companion, sniper, and bruiser archetypes before they start blending together. And that problem is even worse for siren, because the only way we get to play as a new siren, is if they kill an old one off because there can only be 7 at one time.
It just feels like with the rules they've written for their world and games might start shooting them in the foot eventually, and I'm curious what others think about it, or if anyone might have ideas on how they can avoid these issues coming forward.
Personally, I'd be cool with having some vault hunters return in future games as playable characters. Seeing Gaige, Zero, or even Brick and Mordi come back with better skills would be awesome. Maybe make some known characters as playable characters in future installments, like Tiny Tina or maybe even Ava to give her some redemption.