In light of the new elevator monthly pass system in the works I believe the only way for this game to stay playable is to drop the CE market entirely. With elevator passes there will be less people buying CE and more Crowns in the market. To survive SK needs a set exchange rate for CR <---> CE in the form of a Vender where players can purchase CE with CR or CR with CE. This way CE purchases could be made straight from OOO with out the need for a person to purchase CE with real currency first. OOO will still make their money selling elevator passes and people who want instant CR or CE will still buy CE from OOO as before.

The only way the system has kinda working before was that every now and then OOO would put out some new content or package that would temporarily boost CE sales, thus temporarily bringing down CE trade prices. This system didn't work that great in the past when SK was OOO's number 1 baby and now it is going to go even more poorly since OOO's number one concern will soon be (if not already) development of their Dr. Who game for SEGA