This year's changes have been announced.  Any changes for NXT lines will most likely come in conjunction with the PGA show in February next year, although rumors of testing will occur much earliers, starting in the summer.

The ProV Optic for baby boomers has been suggested many times.  Titleist hasn't considered this as a viable option, yet.

Love the NXT Tour S Ball. Best Ball I have ever played.

The NXT and NXT S  are very good balls. I was using the S in cold weather and will start spring golf with the S version.

The S has a nice soft feel coming off the club face and I love the way it putts. Nothing like a Titleist ball on the Dance Floor.

I tried the nxt tour s yesterday and compared to the V1 I could not get it to check on the greens.  Off the driver it flew just like the v1 for me with a little lower launch.

I hit PROV1x in warm weather and will agree when hitting a 3 & 5 wood or 4H into the green the PROV will check up and hold  the green better than an NXT but on higher iron and wedge shorts I see no difference in ball spin  performance.  But I also hit very high shots into the greens with my png Irons.

Its all about what works best given weather conditions and how the golf coarse is laid out for your game.