I'm really waiting for a Pro sized Gemini model with image output.
I experimented heavily with 2.0 for a site I work on, but it never left preview and it had some gaps that were clearly due to being a small model (like lacking world knowledge, struggling with repetition, missing nuance in instructions, etc.)
2.5 Flash/nano-banana is a major step up but still has small model gaps peeking through. It still gets to "locked in" states where it's just repeating itself, which is a similar failure mode of small models for creative writing tasks.
A 2.5 Pro would likely close those gaps and definitively beat gpt-image-1