Personally, I think its a shame that MK chooses to change his personnel so often - it's always fun to play with new people but there doesn't seem to be any sense of loyalty to drummers in particular. Looking back as far as OES, I think it was a very bad choice to use Chris Whitten over Terry Williams. Chris seemed to be a more kind of stop start drummer, flick a switch and off he goes. And whilst Danny is undoubtedly a world class percussionist, the set up on that tour was simply over the top.
I'm not familiar with Ian Thomas or his playing, since I havent seen MK live since 2005. However, it does look to me like drums will be taking a back seat on this album. I think if you are going to water drums down it may be best not to have them at all.