Toro, athletics is not so easy as you think.
During the period of El Guerrouj, there were pacers (for example Malakwen) able running 1200m in 2'45". Today, we have problems in finding pacers able running a little under 2'50". In the list of Bruxelles, I don't see any fast pacemaker. In my opinion, if everything is ok is possible to run a little under 3'30", not better.
About Brimin, don't forget he had a special pacer in Paul Koech, that wanted to show AK he could merit the selection. Don't think the same thing can happen in a meeting again. For this year, Brimin lost the big opportunity, and I'll surprise if the same opportunity can come again.