Yes, the Houston Texans will win their division this year because they have shown that they have the talent and the motivation to win games. The team has meshed well and is coming together to win the division due to their ability to play as a team and overcome challenges.
The AFC South is fairly weak this year, with the Colts being decent and the Titans being a legitimate unknown x-factor. If the Texans can finally put together some sort of air attack to go with their solid running game and great defense, we could see them winning the division. I don't see them going much farther once they hit stiffer competition, though.
The Houston Texans are not going to win their division this year. They did not make very good draft picks and there are teams in their division that made much better picks in the draft. They may have won their last preseason game, but it's one of the few wins that they are going to get. The quarterback on their team is Brock Osweiler, and he was the backup quarterback for the Denver Broncos last year, and he did terrible. The Broncos had to run the ball most of the time because of how badly he played. If the Texans keep Osweiler as their first string quarterback then they are going to have a tough year.
No, the Houston Texans won't win their division unless the Indianapolis Colts are bad. The Houston Texans have never been a team that consistently wins things. They won the division and made the playoffs last year, so it's likely that they won't do the same thing this year. The Houston Texans will not win their division, the AFC South.