Doubt it. Players have short careers.I think he does - though only if we continue to build the club and show progress towards winning stuff. If everything is going the right way at the club I honestly can see him staying here his entire career - if it doesn't then he'll be gone within 3 years.
It is very hard to imagine a player who sacrifices a few titles and 100m+ (which will be the difference in wages and image rights) pounds un order to stay at the club he likes. It just makes no sense on any level.
We'll see, I guess. You haven't been here back when Glaston was saying the exact thing for Bale and then that summer, he moved. Tripling wages and going from a club who hasn't win the title in 50 years (and hasn't even compete about it for god knows how long) to the club with the highest chances of winning the big ears and other trophies, while also becoming more famous and marketable should be a very easy choice.