I hope they bring over stuff like Relentless Rush/Terminal Trigger into PvE GNB since it's the most Renzokuken like attack they came up with and I don't think many can argue how good it would feel to use for mob packs.

The cartridges can easily stay as is if they just make DD cost 1 cartridge and give Double Down, Bow Shock and Sonic Break a 30 second CD instead of 60 so every other use you have buttons to press in and out of a No Mercy Window.

This way Burst, Gnashing, and DD all cost once cartridge and it will feel smooth instead of clunky.

Knocking Bloodfest to 30 or a 60 CD would also do wonders for using Burst Strike and Hypervelocity more.

Would be a nice combat loop to go through. The 2 minute burst formula they have a boner for just seems to ruin things for every job it seems.