This is actually that distracted me away from ST2.
It's 2013 and we generally still use text editors to work with code. The result is that code is typically tied to plaintext buffer by hacks and kludges in a quite awkward way. Highlighting is done by one subsystem, code analysis (if any's possible) is performed by completely another one (so highlighter output may accidentally contradict code analyzer), folding is totally separate from all those, and so on.
JetBrains has another approach to this, as most clearly seen with MPS.
JetBrains has a bazillion different versions of their products for specific uses. There is no reason to believe they wouldn't continue maintaining ST as a separate editor. And assuming they did, it would be pretty great.
The fact that JetBrains is written in Java would mean they'd most likely port the Sublime engine to it. And that would leave the original version in a very bad situation.
If JetBrains bought it and integrated it in IntelliJ that would end killing the original project and I'd be forced to go berserk on Prague, big time.