If those events were customized so its not equal to the standard TvT and Oly as we know it, it would be interesting to me! I think the big problem right now with Oly is that 70% of the players stay in towns and wait for their oly fights. When the oly period ends, they get the result of the month/weeks and they can leave to try another server, to see if they hit the top there.
So keep players away from registreing different solo events, and there will be much more fun arround the map!