I have seen the videos and photo's. I have read the reports from the locals. Then, there are the 2nd, 3rd, 4th.....hand reports from others.
If you look, alot of the damages you see are cosmetic. Once the sand and debris is cleared out, in many cases, repairs are minor. Yes, there is a few places that are irrepairable, but mostly it's lot's of glass and straw roofs to be replaced.
There are still bars and restaraunts open, just not all of them. Many who go don't even leave the resorts anyway.
So, does it matter if the beach is narrower or the plants are not as tall and mature. The places that are repaired or "new" places that emerge might be better than before. If you loved Cancun before, you will still love it. If it is a particular resort that has your fancy, you might have to change.
Please let the locals keep us up to date. Others that are posting hysterical speculations which just get more blown out of proportion as they go.
I still plan on going. Blue skies, the sound of the ocean, some fruity icey drinks in my travel mug...that will still be there. Don't give up on Cancun, hurricanes have been doing their damage for a bigillion years and the land always comes back.