Jason Belmonte has used the Hy-Road quite often in competition, so it made sense the Timeless is a stronger ball with hybrid coverstock on it.
Pete Weber has used many different balls in the last few years (Marvel S, Optimus, IQ balls, Alpha Crux, Wreck-em, etc.) Perhaps a PDW ball in the signature line will feature the RAD4 weight block as in the Code Black with a new and updated, or most recent version of, the Hybrid coverstock. I can't see another strong reactive solid coming out so soon after the release of the Sure Lock.
Maybe the PDW ball will be a totally new weight block paired with a Hybrid or R3S Pearl coverstock.