Dammit man, don't jynx it!Michael Moriarty is, last I checked, still living out his remaining years being a libertarian lunatic in the middle of nowhere in Canada.
There was an episode of SVU maybe, I don't know, four or five years ago, which established that McCoy is no longer the district attorney, so my guess is he winds up being a murder victim.
Criminal Intent only lasted as long as it did because the production accepted a move to the USA Network (and, with it, a huge budget cut).
Vanilla was canceled because it had become prohibitively expensive to produce and then no one watched the 20th season (it had been hemorrhaging viewers for years), which was a disappointment because the final three seasons marked a genuine creative revival. Granted, a huge part of Season 20's dismal ratings was the move back to Friday nights. But, by 2009, procedurals were all over the place, and NBC decided it couldn't fork out the cash to pay for all the cast plus the location filming, as well as cover the ongoing costs with the significantly more popular SVU.
Nowadays, SVU is getting the viewership that got Vanilla canceled, but SVU keeps getting renewed because it's consistently delivering those numbers with almost no fluctuation: Advertisers know that it's a safe bet. Although I'm going to laugh so goddamn hard if SVU--which hasn't been about sex crimes for years--breaks the Gunsmoke record instead of Vanilla. Two more seasons and it's there.

That would be a horrible way to go.
