Colts’ WR T.Y. Hilton, listed as questionable for today with a shoulder injury, will play vs. Texans, per source. Good to go.— Adam Schefter (@AdamSchefter) December 9, 2018
#Colts WR T.Y. Hilton (shoulder) is officially a game-time decision after barely practicing this week, I’m told. But based on his history and the importance of the game, it would be a major surprise if he didn’t play.— Ian Rapoport (@RapSheet) December 9, 2018
For today, I would bite the bullet and play him (assuming he's not ruled out at the last minute). It's a big game, Andrew Luck is playing extremely well, and not playing an active Hilton is less likely to hurt you than replacing him with a healthy, say, Danny Amendola.
If Hilton scores 30 points you advance to the next round, if you play him. If he scores 30 on your bench, you can start your fantasy baseball prep tonight.