Yes I still have my BK9, a BK7m and some older Rolands as well. I have a Tyros 5 too. For a while I set it up in my living room and gave it an honest try. The sounds, features, and display are great but I couldn't make my peace with their chord recognition system. If I wanted to leave two boards set up, I could MIDI the Roland into it. Otherwise if the BK9 dies, I'll be one of those guys out there playing a 20-year old module.
The FP-E50 is proof that Roland's Chord Intelligence "DNA" has been preserved. Someday they may again choose to offer a MOTL arranger, or tacitly license it to another manufacturer, as they did with the Hammond XE series back in the day. Meanwhile the FP-E50 is an heir, while I can only regard the E-X series as jesters and pretenders to the throne!

[Edit] I should also mention... last year I worked extensively with a gentleman from Hamburg, Germany named Klaus who was developing a software arranger called Nimbu. I *think* I convinced him of the merits of Roland's chord intelligence and he promised to include it. He asked me to test several key combinations and provide feedback. I never checked to see if the software was released. But if so, that would be another possibility.