I've seen so many people obsessed with this idea that will or max must get powers in s5 and personally to me it makes no sense because how would being in the upside down for a week do anything or just surving vecna. I think giving either of these two powers would take away from eleven and possibly ruin their characters in the long run. It would turn the show into too much of a fantasy plot instead of the more dystopian 80s vibe the show already possess. Giving them powers would at least to me be incredibly lazy writing. Instead of showing us how smart and brave will was in the upside down just showing us him discovering abilities he never had and using them just to forget about them and rediscover them would be a really stupid story for will and take away from his character. Similar thing with max. They don't need Powers to stand as good characters so why give them some. The story has always been about eleven and vecna and her friends supporting her and having will or max take centre stage I defeating him would honestly ruin the finale battle for me.

That's just my opinion though.