http://www.ethereum.net/news/technology/international-blockchain-week-devcon2-announcedDuring the first three days, from September 19th-21st, DEVCON2 will allow attendees the chance to discover more on Ethereums research, development and security, as well as DApps. Guests will also be treated with a special presentation from the events
Premiere Sponsor, Microsoft 
, which will highlight more details on their
Ethereum-based project, Azure.
https://www.reddit.com/r/ethereum/comments/4rhac3/international_blockchain_week_and_devcon2_details/vbuterinJust some guy 1 point 11 minutes ago
A website with much more detail dedicated to the devcon2 segment will be coming very soon; however, individuals interested in attending the whole week can definitely go through
http://blockchainweek2016.org to buy the whole week pass for $1500 (NOTE: if you are a developer or student you may qualify for the developer/student discount for the devcon2 segment, in which case even if you want to attend for the whole week, registering for the devcon2 segment through the upcoming foundation website separately will still be a better deal for you).
Anyone interested in speaking should obviously contact us, though I will warn that the schedule is >80% full already.