Is it actually possible for them to keep adding content without raising the level cap

[Grailer]

I had read that yoshi didn't want to raise the level cap, and that approach to the game would interest me a lot more than having a raise each new expansion and making older content unused and ignored.

If they keep going with item levels, and stack content based on item level, add quests that are accessible based on item level etc. it could get pretty interesting.

How do you guys think they'll handle it?

Sure why not , the only thing will be they will need to lock out players who aren't geared . Pretty simple . Which makes you think why even have lvl 1 to 50 , just have no levels at all just gear levels .

Considering it takes zero skill to get 50 grinding FATES right