I was just looking at the PDP SD Pro coming out with the Walther upgrade trigger the poster above mentioned, and that looks to be about as good as trigger out there. This guy reviewed it and shows it compared with the standard one
https://www.youtube.com/watch?v=Fgc8mo_jB_0
It looks great too. But if you like more bling, I'm sure there are alternatives from Apex or whatever.
Not sure on the price of the trigger... but you could get on the no-money-down pre-order list from Marstar for the SD Pro (they're saying $1000-1200), sell your PDP for at least what you paid because of the crazy frenzy we're in, and then you'd get the upgraded trigger, and a cool mag-well, threaded barrel (if that's cool to you) for barely anything extra.
That being said.. it might just be better to get the trigger alone due to all the uncertainty and speculation