Here are some rules to add clarification to the challenge:
- The POD may occur at any point following the end of the Mexican-American War.
- By the modern-day Mexican territory must be more or less identical to that of OTL -- so no retaking of Central America or the Northern territories lost to the US.
- US screws must be minimalized -- minor negatives such as losing small amounts of immigrants to Mexico are permitted but breakaway states or outright collapse are not.
- "Development" is a rather vague term, so the sole metric we will use here is HDI. For the goal of the challenge to be met, Mexico must by the modern-day have an HDI in the range of 0.910-0.930.
- Annexation by the United States is not an acceptable answer.
- How does such a Mexico impact the globe in terms of immigration patterns, cultural influence, and geopolitics?
- Would Mexico become the largest target for Latin American immigrants in TTL instead of the US? Would TTL's US have a much smaller Hispanic population?
- How widespread do you see Mexican culture becoming across the globe? Could Mexico have its equivalent of "blue jeans and rock n' roll" as cultural export?
- What type of relationship do you see developing between the US and TTL's Mexico?