Although I could work on this in the next two days, I fear it will influence how I participate in the last steps of User Research, i.e. the affinity mapping and the report. Writing down an architecture will push me in a direction that may be contrary to the conclusions of the User Research. Since it will happen in a few days (May 26th) and the report can be pubilshed before the end of May, I think it is wiser to just wait a little and postpone this until mid June instead and keep an open mind until then.
Or maybe I am procrastinating 
What do you say?