Thorsten Kattanek started on version 5 of his Emu64 emulator. You can follow his work on his bitbucket development page. You can try the snap shots at your own risk. You can give comments or report a bug via the bitbucket web page. The official releases of Emu64 can be found on the emu64.de web pages.
Website: http://www.emu64.de
Source: http://www.richardlagendijk.nl