I would wait. You may see more leaves as the season progresses. I have a lot that look similar, but fill out a bit late than the blooms. I have had them for 20-30 years. Yours looks just fine to me and quite lovely. I do prefer an open natural look to the branches, though, rather than ones that have been pruned into round or square shapes. I have several bright pink ones like yours. Isn't spring magnificent?!

This forum does not seem to bet a lot of action so I hope you dont mind my adding on here. I have a somewhat similar problem.

I have a number of reblooming azaleas in front of my house that look very sparse. The leaves are sparse and so are the blooms. I am thinking of digging them out and replacing them with regular ( not reblooming) azaleas, but if there is any way to save these, that would be a lot less trouble.

Any thoughts? ( hi Cyn)

I am also in zone 7b , but in the Philadelphia suburbs.

Heres a picture .