We can often feel frustrated when we're close to getting somebody to agree with us but somehow manage to overlook one crucial point that will achieve this. Even if somebody isn't asking the question, they want to know 'what's in it for them.' The key to getting them on your side appears to surround helping them to feel more involved with a plan or process. Consider if the emphasis with discussions surrounds 'what's in it for you' a bit too much.
We can all recall times we've worked hard to persuade someone to agree with us only to have their response to be along the lines of a 'condition' involved before they agree. Then, we push for a one-word answer only to receive the word 'no.' It's interesting how we will soon retract our refusal to consider their condition! You can expect such a scenario now or shortly.
Although you could feel reassured that something that has felt stuck or stagnant is finally moving forward, resist any urge to apply more pressure to increase this momentum. Pushing for more progress doesn't help you or anyone else. Trust instead that something is moving at a necessary pace. If you can be patient and allow this to unfold properly, then it will.