Staying: Speed Dial, Opera Menu (Windows)
Going: Bookmarks (given up in favor of Speed Dial), IRC, Mail, Notes, Webkit and Presto, Opera Link, etc.
Coming: Google Blink (the first official browser release to use Blink), Stash, Discover, Off-road Mode
Opera Software sacrificed many features, but Opera just started the Blink era and started their Chromium-based era. In other words, Opera will shrink even more, possibly losing to even Maxthon.\
Opera promises they will add more features to Opera to make up for the loss.
* NOTE: Opera Turbo is now Off-road Mode, which adds SPDY to make webpages even faster. *
* NOTE: Opera has just begun a rapid release cycle, following the likes of Firefox and Google Chrome. *
Extensions, however, are rapidly growing. Opera released a bookmarks manager if you miss bookmarks, Evernote made their product if you miss Notes, and more will be released.
