Well I worked at the Ministry of Tourism, Culture and Sports during the Pan Am games, so I can tell you that putting in extra seats in a stadium can be done in a matter of weeks (4 - 6 weeks), so I don't think we need to worry about it taking months to do this. Plus temporary seats are far easier to put in than permanent seats, so I imagine the idea is temporary seats only. But I will say that for the lousy maybe 10 games that Toronto MAY get to host, it will hardly make up the cost to the city ($25 million plus). Plus I really don't trust the costs over-runs which the city will also be responsible for (extra security and the rest). I seriously don't see this as a win for the city, province or MLSE. Plus as we are sharing the hosting duties with the US, I have no doubt that the premium matches (who knows quarter-finals, semis and finals) will be played in the US, not Canada.