This isn’t the game it used to be.
Please know that I am not saying this to troll or stir the pot, and I am certainly not saying the game is necessarily ‘bad’ as it is now, what I am saying though is that if you are returning and haven’t played since Wrath, perhaps Cata, there are some things you should be aware of.
The culture has changed, the raiding culture isn’t what it once was, and other aspects of the game have also changed. We now live in an era where sure there are some of the top raiding guilds still around, but if you were to look at the game as a whole, you might find the experience a little bit different.
For starters, pugging with strangers is required for a lot of different activities you can do like the heroic warfronts for example, that’s something that while you could bring guildies along it’s typically done with strangers. It’s no longer the tight-knit community it used to be, while you could still everything in the guild, for the average player there is a lot more emphasis on working with people you don’t know.
As a result, if you have the attitude ‘I don’t want to pug’ I need to spell this out right now, that you better make sure you are a player that has really mastered your class and spec, or else you not going to get far beyond normal mode. I know for me I will never be one of the top players, as to me you’re not a real mage if you don’t pick mirror image as a talent, I don’t care if it’s not optimal (Incanter’s Flow is the actual optimal talent for Frost in 8.3 btw). Hopefully in Shadowlands I will be able to have my fun mirror image spell but still be optimal.
It’s just I’ve seen countless people come back to the game thinking that things will be like they were in old expansions, but I would say that each expansion is actually it’s own unique game really in a lot of ways, but I think the important thing is to not raise your expectations too high, now I am not saying to badmouth the game, I think wow is still a great place to make friends from all wakes of life, just in terms of gameplay consider that lots of things have changed.
Though there is always Classic now if you want to go back to the good old days.