IPO is the next one, I guess, because it's new and not really much project using it for raising money.
Hello mate, IEO is still trending. A lot of IEOs are still succeeding, wxecept for those held on unreliable exchanges, but as far as exchanges like Binance, Gate.io, Coinbene, Kucoin, Okex and the likes are concerned, they are still making and paving more ways for IEOs to continue in the crypto space. The only thing that can make IPO to trend is is IEO has failed, just like it has happened to ICO.