Assuming you are using your rogue as main character.

You dont actually need to have your druid stop following you. His cast range is not limited like a hunters so range is irrelevant.

so your follow macro is

/follow Rogue

or if you are using focus

/follow focus

your attact macro

/assist Roguename
/cast Wrath

then hit your follow command again, I suggest as a base, use f as your follow keybind as it is close to the ASDW keys for ease of tapping all the time. Get used to hitting that key all the time. I cannot count the ammount of times Ive left my healer in Ashenvale and Ive been in XRoads or something. :P

If you use focus instead

/cast [focus=focustarget] Wrath

Makes things simpler, best used for PVE groups as your focus wont change much if at all.

Thats if you are running your druid as a caster/healer mode. If your trying to mellee with it, then best of luck but I haven't tried that.

Also, assuming the above, maybe try with having your Wrath macro on your E key to spam while your mouse clicking with rogue, i know rogues tend to be mouse spammers, if you play like me that is, then you can just spam the wrath from the E key with ease. If you were wanting to pause the follow as keeping it on follow is messing up you going behind the target for those abilities then you will need to set up a close to hand key for back on your keyboard, maybe X key or Q as an alternate key (second column in your keybindings) in adition to your other movement keys. But make sure you spam the F key after to keep your druid close and not leave him in zones. :P

Khayos