If they remove all the businesses except new ones at plazas on each end the beach will lose all it's charm. If they remove the trees it's doomed. It'll go from being one of the most enjoyable beaches in the World, IMO, to crap.
A large part of the charm is the "rustic. haphazard mixture of businesses, the people walking from and to Los Charamicos and El Batey, "commuting" and the dual nature of the beach, bi-level, hot and sandy by the water, and cool and shady on the upper level under the trees. The convenience of being able to get relatively fast service from your favorite business and supporting them. It will become much more impersonal and sterile and without the convenience and loyalty not to mention the friendship of the business owners and staff. It'll be just like so many other beaches except with a bunch of luxury condos blocking the breeze.
I rarely go there anymore for other reasons but when I do, and in my fond memories, there's no place like it, in the best of ways. I hate that it'll be destroyed but that seems to be the plan.