User blog comment:Yatanogarasu/What Other Logia Are There?/@comment-1908942-20101219004735

It is a bit difficult to guess what Logias there are now, as Oda sometimes goes out of the box with them. I mean, out of the four usual elements, only Fire has appeared with Water being *very* unlikely. True, Ice and Lightning are fairly common as well as Light & Darkness. But, you don't see Lava around that much, and Sand, Smoke & Mud even less so.

Metal's main useses have been divided into two Paramecias, so only really Wind, Rock & Wood of the usuals are left. But, Oda is creative, too, so who knows what could be next?