This isn't 100% on-topic, but it's about the Fighter, and we can speculate that the Fighter will appear in a packet soon. And I don't want to start a whole new thread. So I'll put it here.
What if the extra attack mechanic of GWM were a class feature of the Fighter? But with two changes:
1) Instead of consuming bonus action it was part of the attack action
2) You could use it as many times per turn as your proficiency bonus
On the one hand it seems like it could result in a lot of extra attacks, but the circumstances required...either extremely lucky with crits, or dropping weak targets...make it acceptable to me. It means high-level Fighters could positively mow through low CR enemies.*
Thoughts?
*EDIT: It means a level 11 fighter could reasonably replicate what a level 5 wizard can do, except without range. :-/