This question came up a few months ago, and someone from Warwickshire (in School Admissions, by the sound of their post) helpfully posted all the information about Moray house papers in reply! You can view the thread here:
The proposed test sounds suspiciously similar to the Bucks & Wirral 11+ papers from NFER. 2 papers, 80 questions in 50 minutes for each paper, and 21 different question types used over the two papers. You will find a wealth of information on preparation for those tests here on the VR thread, and also on the Bucks & Wirral threads.
However, once the decision is final and Warwicks CC go public I suggest that you contact them for as much information as they are prepared to give you. It could be that some further question types will be included beyond those used in Bucks & Wirral, the test may be longer and may comprise more questions in total.