Since right now you hit a hard limit where Science Points lose all usefulness (When you've filled out the entire tech tree), a suggestion on how to continue to make them useful beyond that point :
A new building named the 'Training Center' which allows you to boost the stats of a specialist in exchange for science points (And maybe some silver too, to introduce a silver sink to the game).
It introduces a LOT of options for players. Save up SP to boost your scout to uncover the map quicker? Focus on tech instead? Spread out the boosts or focus on making one super-specialist? Lots of choices here!
A new building named the 'Training Center' which allows you to boost the stats of a specialist in exchange for science points (And maybe some silver too, to introduce a silver sink to the game).
It introduces a LOT of options for players. Save up SP to boost your scout to uncover the map quicker? Focus on tech instead? Spread out the boosts or focus on making one super-specialist? Lots of choices here!