There is no indication of anything like that.
Changing the tax status of MLPs is extremely unlikely, however nobody knows what congress might come up with. So it's just idle speculation and there's really no point wasting time discussing it.
Note that the deductions which allow MLPs to defer tax are things like depletion/depreciation deductions which impact all companies who invest in equipment. Eliminating depreciation/depletion as a tax deduction would decimate American industry and is pretty much inconceivable except as part of a complete overhaul of the entire tax code to a flat tax.