With all the changes with heavy armor and armor traits, should I save up some ingots to remake? What seems the best traits to put on hvy to tank end game content/trials?
Never hurts to save now, and it's cheaper to buy your gold mats early rather than when everyone is buying them. I wouldn't make anything till it comes out though.
I don't think you will be able to chose any trait other than sturdy for the block cost reduction if you want to tank. If not completely that should be at least partially true.
Reinforced is no longer the top armor trait for tanks, Nirnhoned is now the best in every slot except Chest, Nirnhoned beats Reinforced on Shields by 50 extra armor points both with and without the 75% bonus from CP.