Originally posted by x4rd It is not negativity - it's concern. I will just point out that we already have revamped 35 mm glass and it is HD Pentax-D FA 645 35/3.5 AL [IF] for medium format. And yes - it is screw driven.
If its a re=released older lens it's going to be screw drive, like the DFA 100 macro WR is 2009, the Pentax DA 55-300 ED WR was 2013, I'm just trying to think of the most recently released screw drive lenses. The DA 18-50 came out in 2015. I can find no screw drive releases after 2015.
Meanwhile the DA*200, an upgrade from the FA 200 ƒ4.5 was SDM in 2008.
The DA 55-300 has been upgraded to KAF4 and PLM,
There's not much evidence suggesting it will be screw drive... but hey, I guess it could happen. But it is a very pessimistic point of view. The last I can find was 2015, that's going on 4 years ago now.