All the research times and requirements have been updated on the site.
You can see Wild Troops Reseach here.
Here are some data points for you:
- Research Time: 3,762 years
- Power Gain: 5 bil
- Silver Cost: 47.5 bil
New March Tree Additions
- Research Time: 3,020 years
- Power Gain: 4.1 bil
- Silver Cost: 120 bil
Which brings the total research in the game to: