If SPECTRE had not ended with the clear nod towards "this is Bond leaving the service" and Craig had not stated that he would only do another one for the money, I would still think we´re in the same situation as when Sir Roger was gambling for a higher fee after FYEO and OP.
It's possible we actually do look at a very similar situation here, Moore's gambling and, up to a point, Brosnan's position after DAD. In the end it all comes down to the numbers again.
Regardless how you look at it, financially SPECTRE was still a decent success. It earned serious money and the gap to SKYFALL is by no means so wide as to suggest the previous film was entirely playing in its own league. Neither was Craig responsible for the lacklustre US box office nor for the lukewarm response of American critics. And especially not for Sony's absurd deal with MGM that left them behind with a tall bill and very meagre returns to show for their pains. So one thing we may be reasonably sure of: Craig's price for one more film will be
at least that of his SPECTRE paycheque, regardless of his producer credit. Craig will certainly not go home with less.
Enter Sam Mendes. Most of what I stated for Craig holds true for him as well, with some licence to SPECTRE's weak script and its problems that he should have tackled as the responsible director, but for whatever reason didn't. Anyway, I strongly doubt he will return to 007 for less than what he got for the last time. So now we're talking about a project that doesn't have a studio, a distributor or a budget yet - but whatever the budget may be a huge chunk of it will be gone by the moment Mendes, Craig or both will sign their contracts.
Since we also know that up to now no studio was stupid enough to fall for MGM's terms and conditions the way Sony did, we can with reasonable certainty guess that a distributor deal will have details and specifics
differing from the last one. From this I would conclude that firstly a budget for BOND 25 will not skyrocket in the way SPECTRE's did and that, secondly, it's unlikely that both return, Craig and Mendes.
So this snippet of news would indeed mean a solution to MGM's situation is close and that the direction for BOND 25 is that of the entire series. Forward.