Unfortunately, there is no official info about Google Earth (GE).
However, many people (including me) speculate about the possible demise of GE.
Hints:
- Photos neither from Panoramio nor from Google Maps (GM) are not added for long time
- No visible development (no new features, no new information layers)... whereas and meanwhile many small changes are rolled up on GM
- Pro version of GE is now for free
- No many mentions about GE in Google official posts about their products (example: Panoramio death announcement is all about transfer oft he photos to GM, but not about GE)
- future of the applications is a thin/web client (app running from web/cloud on a device within a browser, without installation)
Focus is clearly on GM. Let's see how long will be GE with us...