Eventually, yeah. In the interim it's going to be tricky navigating the waters ahead.
It's probably going to take at least a year and a half for WebGL in workers, rAF in workers, SharedArrayBuffer, WebAssembly, WebGL2—let alone basic worker behavior that conforms to spec—to be supported across multiple browsers.
Web Assembly kind of complicates the whole picture. Soon it might make more sense to write something like Infamous in C, or at least the performance-critical parts of it.
I foresee lots of feature testing and fallback support ahead.