I am a bit confused :S

This has probably been asked and answered alot, but what tier is currently going on as i am still thinking about going back to warmane, i used to play at lordaeron a couple of years ago when ulduar was still out and ToC just got released, then i quit.

But now looking towards frostmourne server as i find it fun to have a fresh slate now and then with the resets.

Is frostmourne 3.3.5a patch with tiers releasing every 3 months?

If this doesn't fit the general forum topics or for some other reason you want to delete this, go ahead.