Oh I'm sure there will be plenty of content and even more in all the DLC they'll be selling but it will still be the same rinse and repeat formula. Borderlands is far superior, never did a mission feel like the last and at least when you killed a boss THEY DROPPED LOOT!!! In Destiny they drop absolutely nothing. It's all about the loot and the drops are very few.
I got a Warlock to level 11 and couldn't do one more cookie cutter mission. That's another thing there is very little difference between the 3 classes other than they punch differently...