I suspect Both, hence why they introduced the second one.

Though I kind of wish they'd have a 1.24 so they could split them a bit, the patch, expected for July is the final one, these bosses will be our final fights in the current game, the showdown, so I think we'll get 2 for the bigshowoff.

We have 1.22 coming up and heck, it came speedy, so i 2-3 months is plenty of time to make some epic storyline and battles for these.

I root for both!