Lots of "rumors" every year about linkage making a comeback on the KTM's.
KTM does have some linkage bikes like the new 690 series and the discontinued LC4 model bikes etc. but there has not been even 1 picture of their current enduro or MX bikes with a linkage rear setup. I'm quite sure they could make it happen and fast if they wanted to but I'll believe it when I see it.
Will it happen? who knows but I agree if it does you will most likely see it on the MX bikes first and it would really be welcomed by the MX crowd and KTM would most likely sell more bikes as well. A poorly setup linkage still works better than a poorly setup PDS IMO. The PDS is very finicky for sure to setup and really seems to have a bigger effect on what the front end of the bike does also.
Off road it seems to works better but MANY still struggle with proper setup, spring rate, sag, progressive or straight rate spring etc. This is quite understandable and the majority of us are not suspension experts and just want to ride, and even the so called "experts" have a hard time getting it "right" sometimes. I think they will keep it for off road but if it does show up on the MX bikes you know people are going to be screaming for it on the off road models as well. Personally I would welcome it back.
As far as maintenance with linkage I really don't see the problem. At least from my experience with my 97 KTM that has it. Once a year is all it needs...if that. It's so well sealed that it always looks good when I take it apart for service. I think the Gas Gas bikes are sealed up pretty good as well from what I read. I have no experience with the Jap bikes. Keeping the pressure washer away is obviously important. I also think having a full spare set of the linkage pieces is a really good idea if you plan on keeping the bike for any length of time. That way one set is always ready to go should you need it quickly.
Their 250/300's still need a 6th speed as well. The tranny debates never end over on the Orange site.
Ok...back to lurking again for me
Skidad