Wilma is certainly appears to be going through an ERC. Dvorak, IR, and WV all show a less intense storm. There are, however, large convective bands starting to spiral around the CDO again, probably starting the expansion of the windfield that people have been predicting would happen to the small core of extremely fast winds. If it completes this ERC before it leaves the perfect conditions required for a cat 5, then it may become a large cat 5 like Rita or Katrina, but its unlikely.

Wilma is also going through the cyclonic loops that someone already said. It's been through one already and is finishing an even larger one. Thats what causing its current motion to look SW or even S. I suspect in the next few frames it will turn E, then N and finally back to NW. So far the southen track is a jog, but we need to keep our eyes on it. It could be the brake us in S. FL need.