Gen 5 is my favourite gen of all time, and that's why I don't want them to revisit it with a remake, or, worse yet, Black/White 3.
I am not happy with Pokemon's modern development cycle. The games are coming out way too quickly and lack any sort of polish. This annual release cycle was fine back in the day when Game Freak made top-down, sprite-based Pokemon games that presumably took a lot less development time and effort to fully bring to completion... but now, in a world where they're trying to release massive AAA open-world games, this dev cycle just doesn't work anymore.
If we get a BW remake from either GF or ILCA, I have no doubt it would be a huge disappointment to my favourite generation. I saw the Gen 4 fanbase during the abysmal BDSP, and I certainly don't want that happening to my favourite gen. A sequel would be even worse because it'd actually attempt to build on the world and its story, and honestly when I see Pokemon's current output... I'd rather they leave that saga alone. Just don't touch it. I don't trust them.
I'd be happy with a Legends Kyurem since it's a different take on Unova presumably during a different time with a totally distinct gameplay style, but I really don't want them to risk tarnishing BW/B2W2's legacy with a remake or direct sequel. Maybe that's hypocritical, but I also had a great time with PLA so that would probably be the best option.
I'm honestly kind of upset that the Indigo Disk is set within Unova... it's going to hurt to see my favourite region depicted in such an unfinished, rushed manner even if it is a totally unfamiliar location.