You lose Shadow DM feat: bye-bye Displacement. But you gain a feat slot for Completionist and can take racial Ranged Power boost to double up, so hey: tradeoff.
Sure - particularly if you're dropping Shadow DM + Extend - but it might mess up your feat or leveling progression, because you need to take monk 12 by lvl 18 if you want Grandmaster of Forms there; otherwise it's delayed until epic lvls and epic feat slots are too tight already. Maybe level rog 1 / rgr 1-4 / monk 1-12 / rgr 5-6 / rog 2? You can put Manyshot into your lvl 9 feat slot; then swap it for Completionist just before you take rgr lvl 6. EDIT: rog splash would also open up stacking Stealthy speed boosts, which are apparently WAI (much to my surprise).Could this build be done with 2 rogue or arti instead of fighter?
I haven't updated these builds yet for monk buffs. FYI, you can get Quick Draw feat free from the Henshin core but it costs 11 APs; and since these builds spend 6 Ninja + 14 racial + 41 AA to start, that doesn't leave a lot of wiggle room for APs.