I am done with Destiny, I was a few weeks ago.
For all it's flaws, I enjoyed my near 100 hours of game time. I've done everything that is to be done, except for the raid.
While the repeating the same thing over and over could get tiresome, the rewards that you got, made the grind worthwhile (for me). Once you 'understood' the system, by that I mean the various types of 'currency', you could work on getting a particular build that you wanted (although it did take time)
At Level 27 though (near Level 28) I just don't have the need to go any further. The grind has come to a near halt for me until I do the Raid (or run around chest farming).
I won't be investing in the DLC until it is on sale, because it doesn't appear to bring much 'fresh' to the table.
In the sequel, I would like to see:
Crafting/Enchanting - This is a huge thing missing from Destiny. It is all well and good getting that legendary/exotic item you want. But what if it doesn't have the buff you want? Well, tough. You have to grind again until you get the one you want.
Trading/Market/Gambling - - You have to be careful with anything like this, or you create a black market, where items are sold for real money.
Character Variation - The character creation is pretty decent, visually anyway. I just don't feel I can add enough personality to make my character unique to me. Also, the story missions play out pretty much the same, no matter what race or class you are. I'd love to see some variation in this, encouraging you to play different charachters and races without repeating the same 'story'.
Variation in Story Missions - Activision could learn a lot from their friends on Call of Duty. Hear me out here before you all jump the gun.
COD, traditionally, has had a great varied 'campaign'. It mixes thins up from it's set pieces and waves of enemies by giving you vehicle missions, air support, areas where you need to use stealth (or you fail the mission), hostage rescue, assassinations.
You even have the 'press X to hack the computer' kind of stuff, similar to Destiny in the 'scan the environment'. While the input is the same, there is variation in COD. I've scaled buildings, diffused bombs, hacked computers, and much more. All with one button.
And when you do one of these 'press X moments', you don't always set off an alarm and get attacked by enemy soldiers. With Destiny, you know the next wave of enemies was coming.
At it's core, Destiny is a solid game.The sales numbers are fantastic and it appears to be keeping hold of a solid core player base. I hope it does well, because fresh new IP is what keeps this industry going.
Rest assured the sequel will get the hype. If it delivers, time will tell.