You know this makes sense! As delighted as I am by the A4 I think a 3rd LFO would be really brilliant as I sometimes want to modulate the filters seperately and am then looking for a 3rd source to do something.
Also, LFO (and plocks) on Performance Mode - that would be brilliant.
On a side note, I now get the 1st filter and how useful it is when using performance mode. Increasing the cutoff of all 4 channels (and extending amp envelopes a bit) at once can take a relatively tame sequence and transform it into a monster.