But Stamina + Mana as two different things is not restrictive in a way that I perceive helps gameplay. All classes can active block, sprint, etc. All should probably have a reason, at some point, to do so. Therefore having both will only create depth, and in fact, not having it has a chance to reduce it.
That's just my experience, and therefore my feedback.
You know my experience is super limited. Are there games that have in-depth player to player (or even pve) interactions with the stamina system? Obviously outside of the obvious "they're about to hit you so you spend stamina to block or dodge".
I'd imagine there might be at least a few or just those that have this kind of mechanic functionally. And I want that kind of depth in Ashes. It could come in the form of "some of your abilities also influence stamina" or it could come in the form of "you have some abilities that influence stamina". The former would probably lead to some balancing issues and the latter would lead to ability bloat.
And I say bloat because I also want deeper mana gameplay, so having both "mana" and "stamina" abilities would increase the 30-50 ability goal by quite a bit. One could say "well you'll have a choice between the two, so it's risk/reward" and, while that is true, everyone will also have both resources at all times, so by limiting yourself to interactions with just one of those resources - you're removing a part of gameplay from the game. This is why I think this design would also be restrictive.
And if you decide to have some minor interactions for both resources - your ability pool is super shallow, while also requiring you to switch between action bars because you simply can't fit it all on one.
I could see the addition of a stamina-like mechanic later on through some in-lore finding of a new type of energy. This would allow Intrepid to add newer abilities, add a whole new system to the game with its own depth and maybe counterbalance some issues that came up during the mana-based era.
But in the end, as I've said before in other threads, I'd be totally fine if Intrepid is already planning to have deep interactions for both stamina and mana. Except the sheer fact of them not even fucking knowing whether they want stamina or not leads me to believe that it would be super shallow.