With respect to extended addressing, one kind of proto idea I have is to enable the use of tied bots as a receptical for storing information. Imagine if we modified tmemloc and tmemval (or invented a new mechanism) so as to allow for "dynamic" real-time addressing of a tied bot's memory. That is, changing .tmemloc would instantly change .tmemval in real time right there, that cycle, for all the following DNA. In this way bot A could in theory address as many different locations in Bot B's memory as it wanted in a single cycle.
This strikes me as a rather general purpose mechanism (I don't claim to have thought through all the ramifications) that would encourage cell specialization and multibots and in particular, does not mess with the foundations of memory addressing. Info shots, altzhiemers, refvars and so on all work just as before but it a bot wants to say, maintain revar info about every bot it's ever seen, it now has a theoritical way to do it I.e. bud off additional tied cells whose primary purpose is a memory receptical for use by the "brain cell(s)".
Just a proto idea for now.