I'm guessing Tikka will have a T3 next year in 260. My best guess would be a stainless hunter model in a wood stock. I'm betting the barrel may be fluted too.
I have a T3 hunter. Came in a wood stock which I promptly removed and installed a T3Lite plastic stock I had off my other Tikka I put in a B&C Medalist.
I love the rifle. One ragged hole with 5 shots from my handloaded 125 Noslers over H4831. Weighs ~7lbs.