NOTE: I did post this on /r/minecraftsuggestions I don't think anyone really understood what I mean so I'm posting it here too.

My Idea is when you break the new magma block it will turn in to a lava source block rather than dropping, a normal block, This would work exactly like ice where if you break it with a silk pick you can get it as a block that you can move around easier, it would also make sense Just looking at the texture, it looks like if you step on it it will "break" and turn in to a lava source, now before you say well thats really OP, you have to remember you cannot farm this like ice, and it spawns around the most dangerous part of the nether, Here is a little demo I setup