The FormsCentral for Acrobat.app AIR application will be able to create forms after July 28th. This application was included in Acrobat Pro XI. The web client for design/edit/sharing is going away.
Please keep in mind that the FormsCentral desktop app will be uninstalled when you upgrade to Acrobat Pro DC. If you end up using the FormsCentral app included with Acrobat Pro XI, be sure to export any forms you create with it to PDF prior to upgrading Acrobat.
Also, please remember to export any forms created using the FormsCentral web app to PDF by 07/27, as these forms will no longer be accessible as of 07/28. They are not accessible from the desktop app.