No, I don't think it'll make a significant difference.
The key change between the 3010S2D and 5010 pre is that the 5010 has balanced outputs, which you wouldn't use as you don't use the 5010 power amps.
Thus, I think you'd get far more upgrade potential by looking at source or speakers instead.
Mana Acoustics Racks / Bright Star IsoNodes Decoupling >> Allo DigiOne Player >> Pedja Rogic's Audial Model S DAC + Pioneer PL-71 turntable / Vista Audio phono-1 mk II / Denon PCL-5 headshell / Reson Reca >> LFD DLS >> LFD PA2M (SE) >> Royd RR3s.