I've been toying with giving Age of Sigmar another shot and having been reading through a load of stuff it really feels like AoS is ever so slowly going back to the old WHFB rules, just with round bases and still having silly individual named rules instead of general rule names like Killing Blow etc.
Not a bad thing as I found the AoS rules very poor in the past (Thanks to Alan Merricks desire to kill off anything attributed to Rick Priestly).
Honestly, I would just wait for the revamped Warhammer Fantasy and see if it's something you would want to play. AoS is significantly different rules-wise, so it might not be worth investing in if you're not sure. I would do a test-run a couple times using the AoS Skirmish rules.