Having just viewed the API session at Roll20CON 2016, it seems obvious that much of Rolemaster Combat Minion could be migrated to Roll20. This would allow the huge array of functionality provided by Roll20 for online collaborative gaming, overlaid with all of the RM combat tables, logic and sequencing. And both are written in javascript making it even easier.
It could easily take over from the wep app because it would cater for not only online games, but also tabletop (face to face) RM. In the latter, the GM would simply open Roll20 and the installed RM module would work just like Combat Minion right now. Roll20 could therefore be the platform for both sets of play groups.
The IP would need to be discussed to see how ICE would handle it. I think it would open up a potentially large new market of players, and provide an additional revenue stream since I would assume the combat tables (IP) would still be purchased.
Anyway, just opening up this topic for discussion and to see what others think.