The Razr Maxx will probably be around until November and then it will be EOL, too. By then, the next new shiny thing will have been released. This is the normal cycle of products these days.
EOL just means it won't be available new anymore. At that point, when stock runs out, it'll be off the shelves and off the website menus. It will still be available (for awhile) as a reman item. Support will continue. The Droid X, released mid-July, 2010, just got an update a couple days ago.