Awhile ago I read about datamined achievements which could potentially be for different game modes. One of these game modes is the Arena system we all know about. However, the rest lead to implications of a TDM PVP mode, DotA PVP mode, as well as a Hero Defense PVE mode where you and your group must defend a town/objective from increasingly harder waves of creeps.
So far, only Arena has been announced. Are there any plans from Blizzard to implement those systems which I've mentioned or similar systems in the near/far future?