Only 1 change to Ret: Crusader Strike at level 20 will only have one charge instead of 2 (2 charge CS is unlocked at level 24 through unlocking "rank 2" of Crusader Strike).
And while Ret's mobility is poor compared to other classes, in my humble opinion it semi-makes up for that for access to
other tools (at least compared to other classes, especially hybrid and melee hybrid classes [dps druids, spriest, dps shaman, and non-heal monks]).
Though speaking of hybrids, nearly all hybrids heal on PTR heal for a similar amount (approximately 800 per cast, give or take [including Regrowth for dps druids]) per cast and OOMs in 4 to 5 back-to-back casts (with the exception of non-mist monks, which continues to have the lowest offheal cast of any hybrid at around 500 per cast outside instanced PvP).