The analog path is definitely identical, for the rest I am not able to announce any future sequencing capability for the original MiniBrute or arp capability for the SE, sorry.
Those are two -slightly- different beasts !
This systematic keybed replacement includes our stocks, our distributors' stock and most dealers' stocks. Sadly, we are not able to have Chuck Norris check each retailer in the world. It seems we should at least send him to yours, though.