The midfielder has arrived on-loan from Arsenal.
Asked if building Wilshere's match fitness was on his priority list, Howe told the Daily Echo: "There is that challenge. One of the key things for us is to make sure he's fit and able to do himself justice but also to maintain his fitness is key.
"We will be flexible with how we train to get the very best out of the player.
"I'm hoping he will bring quality to our attacking play. I think I've said after every game this season that we've frustrated.
"We've done well in the first two thirds and then that final pass, that final bit of creativity has been missing in stages of all the games.
"His main strength is his quality in the final third and I'm hoping that is evident very early.
"I hope the transfer is a very positive one for the club this season.
"I'm excited to see him play in the team. I'm excited to see what he can do in the team and the level he can take us to."