With Sinclair among the top three ABC affiliate groups now that they have Allbritton, this seems a little less likely, a 50/50 proposition now. A couple of years ago I could have seen it much more, though Trib only had WGNO back then as an ABC affiliate, and even now only has three ABC's after the Local TV LLC merger. At this point ABC can't find any reason to get SBG's ire; the days of the
Nightline war dead list being aired despite Sinclair's objections are long over and you never hear about any ABC/Sinclair skirmishes any longer since they know it's a good chunk of their viewership. I would keep a watch on how that St. Louis renewal pans out, though if KDNL has to go CW, at least they have the Nielsen scratch-filled schedule already as an ABC affiliate to go with it.
I have seen little mention of what's going on with WTTK though in all of this, especially with the CW/CBS split and the bandwidth fun to come for the engineering department

. What I can see happening though with WTTV is the same arrangement Trib has with their Fox and MyNet stations in Seattle; KCPQ broadcasts from the west shore of Puget Sound on the Olympic Peninsula (licensed to Tacoma), so they use KZJO to rebroadcast KCPQ on their .2, which broadcasts from north of downtown to provide the center of town and northern suburbs a clean Fox signal in some way. With WTTV, they could easily use their satellite WTTK (licensed to Kokomo, but broadcasting from the WXIN tower in the digital age) to provide a full-HD CW signal for antenna viewers on their 29.2 and a reduced 720p/480i signal for CBS on 29.1, while the reverse occurs with WTTV; HQ HD for CBS on 4.1, 480i widescreen for CW on 4.2 (On cable/sat, they'll just get 1080i via fiber to the headend, no doubt, so it's just a matter of bumping over a public access channel or infomercial pipe for whatever new channel CW 4.2 gets). Both WTTK and WTTV have a big overlap in the digital age, so however they do it for now it should still work out for CBS and CW viewers over the air.