Nothing? I'm a bit nervous that he's a mite too strong, compared to a Warblade or Swordsage... and possibly MAD... and that the two main mechanisms (Strategy/Repertoire and the Talent Pool) don't mesh together well enough.
Also, as a plausible and simpler alternative to the Repertoire... (I guess consider this an ACF?)
Combat Versatility: At first level, choose three weapon groups. For each weapon group, you may select a number of fighter bonus feats equal to one-half your fighter level, rounded up. (See the "Strategy" column). Whenever you wield a weapon from the specified group, you gain the chosen bonus feats.
At 4th level, and every subsequent 4th level, pick one new weapon group.
You may select the same weapon group more than once. If you do so, you gain a second set of bonus feats usable with that weapon. When wielding the weapon in question, you may switch between sets of bonus feats as an immediate action.