Given the layout of the proposed layout of the JKT I wouln't be surprised to see that get rerouted, not sure how much though.
Are you talking about the JKT to Tri-City Connector? If so, I think that route around the West and South sides of Will Rogers Airport is about as good as it can be. That new turnpike segment could be really great as a reliever route for that very busy zone on I-44 between the West end of I-240 and interchange with Airport Road. Of course Yukon and Mustang are going to need other super highway improvements in addition to that connector.
When I saw how they tied in the Kickapoo to I-35 it sounds like they're building a full bridge over I-35 which indicates that they plan to eventually tied the Kickapoo to the Bailey/44 either near Chickasha or near Lawton.
I don't see a Chickasha to Slaughterville turnpike ever happening. It would be a waste of money to build roughly 30 miles of new terrain turnpike just 8 miles South of the existing H.E. Bailey Turnpike Spur. It would actually be considerably less expensive to extend the H.E. Bailey Turnpike Spur the last 6 miles to I-35. And the road going by Riverwind Casino would get a whole lot more use.
Speaking of future tollways are they referring to what they planned on doing the first time (e.g. extending the Muskogee to Poteau from I-40), if it's not that then the only thing I can think of would be the extension of the Cimmaron west of I-35 (running along 412/future Interstate) to Northwest Oklahoma which could be part of the overall plans to tie in the new Interstate from I-35, west and eventually northwest towards Limon and I-70 (and eventually to Denver).
The Chickasaw Turnpike is a whole other deal than an extension of the Muskogee Turnpike to Poteau. There has been a lot of conceptual turnpikes drawn up over the previous decades. Some were good ideas and others have been ridiculous.
The US-412 upgrade to an Interstate has some limited growth potential. I think it would be good if US-412 could be turned into a freeway from I-35 to Enid. A limited access freeway or turnpike between Enid and Woodward is more iffy. And one going all the way out to Boise City is more iffy than that. Concepts have been tossed around in the past though.
I strongly believe a Denver to OKC diagonal Interstate would be incredibly valuable to the nation's highway network in the big picture view. Actually I think it should be Denver to Texarkana going thru OKC. West of the Mississippi River there are very few diagonal Interstates running Northwest to Southeast. Diagonal routes in the Western US mostly run Southwest to Northeast. Metros in the Northwest like Salt Lake City and Boise are growing. Same goes for the Front Range Cities in Colorado. There is no diagonal super highway access for that Northwest region going direct to the Deep South. You literally have to drive East of St Louis for such routes, like I-24.
Limon is an important jumping point. A diagonal Interstate going to OKC could begin there, overlapping US-287 down to Kit Carson. It would be akin to the nature of I-44 running diagonally from St Louis to OKC. Kit Carson could be another junction point with a North extension of I-27. The OTA has had plans on the books from a turnpike from OKC to Woodward (and Boise City). But it has little chance of ever getting built as an in-state only route. Likewise CDOT isn't going to much with US-287
and I-27 without some serious federal involvement. Over the long term it's possible OK-3 could be improved quite a bit between OKC and Woodward. But the Woodward to Kit Carson leg would require all new terrain in 3 states. It would take federal involvement to coordinate a big picture plan.
If a major Denver-OKC diagonal Interstate was ever built then it would make a US-412 freeway or turnpike between Woodward and I-35 much more viable.