It just might be repetitive. The rest of the game is, it's a logical assumption to think this will be. Everything in this game spawns the same way, the same place, everytime. There is no randomness in this game aside from what is RNG. The Arena will most likely be the same way.

I was just saying this exact same thing to a friend earlier. They're damned if they do and damned if they don't. If they just went with another raid people would call them lazy and lacking in creativity. They give us something new and people still bitch. I'm excited for the new content. We'll still get more raids in the future. I'd rather them take their time and get it right anyway. It's a marathon, not a race. If this game is going to last for 10 years we're still in its infancy. I'm assuming they looked at the numbers and saw that a large percentage of people aren't doing the raids. This new mode will be more accessible. Maybe in the meantime they'll be working on a way to make the raids more accessible. Who knows? All I know is I'm excited about the upgrade paths for our current raid gear and exotics. I'm looking forward to the new mode as opposed to grinding another raid to reach the next maximum level. We should at least give it a chance before we start bashing it. Maybe it will be a lot of fun and a nice break from the raid grind. Let's be positive and look on the bright side. There will still be new gear and a new level to reach.