Axial appears to have a new crawler on the way. Well, kind of.
The new Ridgecrest crawler is a new version of the AX10 model. Other than that small detail, not much is known about this new cralwer. According to Axial's Ridgecrest AX10 page, it's due out in spring 2012. Standards like a 2.4GHz radio look likely, from the antenna length. Wo know it will be available as a Ready-To-Crawl. That's all we know at this point.
Keep an eye out for more details as they become available.