Sonic Break and Bow shock being consildated would be great but would be hard to do so I think it is mostly unlikely. I dont think they will change the way 2 minute burst line up with big mechanics or TB. That is bad for any tank especially when combined with the second pot window.

If they add another cartridge in DT or give an upgraded version of double down they may need to look at increasing the no mercy window. Heart of light needs something extra, especially since it only covers magical damage which usually 1 of the 4 savage fights per tier has a boss that does mostly physical raid wide damage while the other 2 tanks have group mit for every fight.