Select difficulty...?

In gMS, sure, we take down HT and CWKPQ bosses in less than a week after figuring out a strategy for it, vs other servers.

My question being, with difficulty implemented, will the current bosses be harder or easier? Because at the way the current bosses are at now, are they setting that as 'normal', 'hard', or what?

For us, it's probably one of the easier versions to defeat bosses. For many of the initial boss runs, we can look at other versions and know what works and what doesn't without having to try ourselves from square one. I suppose the only exception to this rule would be exclusive content, but extractions about the boss mobs get out eventually and that helps players know how to fight each mob. Having a strong access to in-game data and to strategies from other versions make this game easier, that's for sure.