Gemma 4 rumors spike after Google PR

This looks like credible roadmap leakage, not a release signal developers should bank on yet.

• –The strongest evidence is the public GitHub PR itself, which explicitly names “Gemma4” and adds NPU support for AICore in LiteRT-LM.
• –Infrastructure commits like this often land before launches, but they can also reflect testing, staging, or long lead-time integration work rather than an imminent public drop.
• –Google’s official Gemma page still highlights Gemma 3 and related variants, with no public Gemma 4 announcement or release notes yet.
• –For AI developers, the interesting part is less “will it ship tomorrow” and more that Google appears to be preparing on-device and edge deployment paths early.
• –Until Google posts an announcement on its own blog or Gemma pages, this remains community speculation grounded in one meaningful but incomplete signal.