Estimated future difficulty web site

[pjviitas]

Does anyone know if someone has estimated difficult over the next year?

[Sonny]

Does anyone know if someone has estimated difficult over the next year?

If you are talking about the next difficulty, you can use http://bitcoinwisdom.com/bitcoin/difficulty
If you are talking about a long-term difficulty estimation, maybe you can refer to the mining speculation board.
https://bitcointalk.org/index.php?board=81.0