I don't want to be bad, but is it really important ? I mean, there is things more important than that, and also, we don't know how much light attack damage will increase and how much heavy attack damage will descrease and return ressources.
This topic is a bit meh, because there is more important things to do and we don't even know how the mechanics change...
As long as light attack are weaker than heavy (and they will post probably be), no.
We'll see soon the new damage they'll do, but I highly think they won't cut the huge gap between light and fully heavy we actually have.