There will be more Apple products, but not the two you mention. Businesses do not respect the type of expendable employees who work in fluorescent light-lit cubicle farms, if they did they would provide better conditions for them. They won't be getting computers that cost triple what a crappy PC would cost, and they won't be getting upgraded to 2 ply toilet paper either. Furthermore, its not all about money- Apple expects their users to keep updated to the latest OS or lose support, while business IT weenies typically still use Windows XP so they don't have to test any updates, ever.
Likewise, the Xserve disappeared because nobody wanted it. Apple's products shine in design and user interface, they have nothing to contribute to the world of backroom servers that are only accessed remotely. Apple understands this and will not repeat its mistakes. They still have the sales data to remind themselves. It's not pretty.