Aria is the first engine. The longer-term plan is a family of models that read the same match at different points, each built for a specific job rather than trying to make one model do everything.
Isla is the later-game read. She takes over when the match has moved beyond half-time and the information state has changed materially.
Xena is deliberately narrow: the final ten minutes, reduced to one question. Goal or no goal.
Ange turns the half-time read into a correct-score view, presenting the leading second-half score outcomes and their fair prices.
The engines are only one part of the roadmap. We also want to build tools that make operating them faster, safer and less repetitive without hiding the underlying logic from the user.
Each engine moves forward when its dataset and blind testing justify it. The roadmap is a direction of travel, not a promise that unfinished models will be rushed out because a date was printed on a website.