No the age of pulse won't end, why? Because they are at the point on a performance curve thats perfect for your average player, efficient, don't punish much for poor use, very little management required, accurate, cheap and effective.
You should not confuse that with other weapons not having a role however, as it isn't the same thing. Beams do considerably more DPS, bursts do in between but have worse penetration and thats just the lasers. DPE only matters in stalemate combat and has its own drawbacks.
Its like this Pythons at 1 ring and hes just triggered a SCB which one do you want, Beams or Pulses?
Pulses every time! If your at the stage of popping scb then you can guarantee that your cap will be empty with beams DPS = 0...pulses your still in the game.
Nothing is more effective pve than a python with 3 x C3 gimb pulses. Cheap and nasty the other 2 C2 g multis cheaper and nastier lol.
I have tried many many loudouts on the Python but the pulses just kill quicker.