Swarmkeeper
Hero
In a sense, 5e does have something like feat chains already: the Warlock's Eldritch Invocations that require a particular Pact or Spell, and then some require certain class levels.
If WotC keeps the new feat chains short and the individual feats similarly powered, should be ok in general, IMO.
If WotC keeps the new feat chains short and the individual feats similarly powered, should be ok in general, IMO.