The design for the BMD stadium is already done and will be released when EFC have the funding guaranteed and want to announce it. That's the hold up. It is not a bowl. There is no running track. Why do you think Anderson suddenly started throwing Manchester's name around as hosting some of the events in recent days? Because he now knows there is no chance of a permanent running track at BMD or even a temporary one. Glasgow hosted the 2014 games. Opening & closing ceremonies at Celtic Park (no running track) and athletics at Hampden Park in a different city, Edinburgh. That's what Anderson is referring to - the athletics being held in Manchester.
Really wish I could say more but I can't and I realise that makes me look like the usual dreaded self-styled ITK on here but it's gonna be a 58000 four sided stadium with one side being a massive one tier 15-20000 seater 'kop' stand (for want of a better word). There is not going to be a running track under any circumstances. That's not in Dan's design, that's not the wish of the club, the club realise what a total PR disaster it would be, and they've learned from the West Ham situation, as referenced by Dan himself on Twitter.
The Commonwealth Games bid really has no real influence at all on the design and building of this new stadium. I appreciate some people find that hard to believe due to Joe at times trying to marry up the two concepts together but that really is the case. The design for the BMD stadium will be out long before the outcome of the Commonwealth Games bid is known and they're not putting a running track in on the off chance that Liverpool gets awarded the games, nor is there any contingency plan to change the design and insert a track if the bid is successful.