[jccalhoun]

Opera switched from their own engine, Presto, to using Chrome's Blink engine. They probably won't be switching engines again any time soon.

[rasz_pl]

They didnt switch engines, they dropped their browser entirely and skinned Chromium.

[tracksmer]

No, they didn't skin Chromium. They made a new interface on Chromium.

[JOHN_BONER]

They don't have to switch engines to stop supporting Opera on Linux again. They just have to stop releasing new builds. With Opera being closed source software, Linux users can't just compile it themselves from source. They're stuck with whatever version Opera chooses to release.