Hi, I noticed on http://download.wikimedia.org/enwiki/20070402/ that the ETA for the next history dump is May 19 and I have no reason to suspect this is wrong. Once the bz2 dump is finished, the 7zip dump will begin, and this is usually much faster. Last time, it took about ten days to complete after the bz2 dump had finished.
Is the 7zip dump generated from the bz2 dump or from the database? If it's generated from the database, I'd propose generating the 7z dump first, and then the bz2. That way, we'd all have new English data to play with a whole month earlier.
Thanks, - Dan