New. How to quest in different timelines for the anniversary event?

I noticed when I hit 60 in dragon isles I was forced out of my timeline and had to go to dragon isles to get quests. I have a few characters that I made in the Mists of Pandaria remix at level 70 and cant talk to the chromie to start a new story. Is this the same deal as before but with a level 70 time cap now? Now that all my characters are level 70 I cant talk to the chromie and shes telling me to go do the new storyline. I want to play the main story on my main and have my alts discover the rest of the game, is that possible at level 70 and if so how do I start those storylines?

I’m not entirely certain what is available for new players vs. existing players. I’ve been playing since 2011 and if I want to go to a different expansion while leveling it has to be before the level cap for Chromie. So my suggestion would be to create a new character and when it gets to level 10 talk to Chromie and see if she offers you the opportunity to go to a different time line to quest. You might not be able to complete an entire expansion through Chromie time but if leveling doesn’t matter you should be able to just go back to that expansion on your own using the opening quest to start the particular story . wowhead usually can tell you where to find the various npc’s to start the quest for an expansion. You might need to enable low level quests to do that. If you’ve already been to a particular expansion you should be able to return there using one of the portals and then go to wherever you were last questing to continue on.

I found a way around the 70 cap, there is a npc who will eliminate experience gains and make it possible to finish a story without being thrown out. I think leveling is too fast to complete a storyline and I found myself trying to avoid exploring because of the cap. I did have to start my character over, but I locked it at level 69 and can now continue on my way.

You can still do the old questlines if you’re over level, they will just be easier. Turn on trivial quest tracking and go to town. You can do any quest in the game. Chromie Time just scales stuff to your level.