Today, Maxis announced they're not going to offer hosting plans for fansites of the Maxis games anymore. However, they will try other ways for sites to host their content. MaxisKitty, community manager of Maxis, has stated the following (to a group of fansite webmasters):

"We are not going to be offering the Hosting service. After reviewing it and understanding it better we determined that we can't offer it.

"We are looking at other ways in which users will be able to use our storage space to host content, but we won't be acting as an ISP."

Of course as soon as details about any other plans are revealed, we'll let you know about it.