I'll wager it won't get crazy busy. The Texas court was letting anything and everything through. It won't take many summary judgements from courts in these jurisdictions before it is no longer profitable to troll.
Districts like Delaware have a vested interest in being a business friendly place to file your corporation papers. They won't likely allow the district to become an easy place to file phoney patent suits. And in districts where the companies actually reside will be even less likely to let through these time wasters that damage their biggest employers and shrink their tax base.