both games share the same simulation engine for the Tour, but TEM will let you see all player skills, where TE2011 hides a good bunch of them, so I guess TEM is a better choice.
Note that the strength of each player is determined for each year (this is called RankPerYear), it's not random. If you add more years, you'll have to enter that RankPerYear by yourself. It's not programming, it's just editing a text file, though.
The bases ending at 2025 means there's no RankPerYear anymore for the following years, so nothing can happen. Also, there's no automatic generation of new players, you'll have to create them.anaum91
seems to have managed to extend the bases ; you can see a lot of topics from him here : forum11.php
You don't need any Mod to simulate future results. SamPatch may contain more accurate real player skills, though.