Final Task: Updated Rocket: A Bigger World Wonder

At the end of the game, I don't know what I can do.
The existing game mechanics can progress in three directions
1. Upgraded multiple rockets require more complex industrial chains, such as transporting people from residential areas to explore space, and regularly bringing back some extraterrestrial materials. Regularly package and launch non recyclable air pollution into space to achieve zero pollution
2. World wonders similar to Captain's Temple can come with additional features, such as skyscrapers that provide a large population, multi-level farms that can produce a variety of crops,
3. Residential areas can continue to be upgraded. The current residential areas are like medieval buildings, not modern enough. While increasing the number of residents, more industrial chains are needed (such as inputting research equipment, which just solves the problem of no available research market line after technology research and development is completed+1 describes the extraterrestrial sub

Yeah, I think as it is at this moment, the game needs some sort of late game ressource dump (and objective). Right now I really don't know what to do after finishing the tech tree.
In theory you can play forever by gaining ressources through contracts but there isn't anything you can do with these ressources.