the only reason potentially the new smller water cooled motor "might" go into a Monster framework is because of the extended service interval as a selling point IMHO even though the service might cost more, not having to do it as often measures up to more people riding based on the number of bikes that are sold at the major service intervals with it needing to still be done at time of sale.
I remember hearing somewhere that most of the big air cooled bikes would soon be water cooled due to noise and emissions constraints. We've seen the Hyper go water cooled and it wouldn't surprise me to see the monster go that way in the near future.
