I would suggest using night goblins in the new edition. They are cheaper meaning to can field bigger units of them. A unit of 40 with nets and a cheap combat hero is going to pack some punch. I am not sure about archers in the new edition they have poor range and with all the new scenery in 8th they might not even get to shoot. But they are dead cheap and are able to pump out a lot of shots. There magic is also pretty good, Although the lore isn't as devastating as the new 8th ed ones they use a softer miscast table, so you won't be losing half you army if you roll a double 1.
So yeah Goblins are pretty viable as an army with the ability to field tons of troops and lots of hero's. Heck you could even have a hero for every squad, you can have lots of little shamans running around the board creating a devastating magic phase. For your special choices you can field tons of goblin chariots and war machines to support your main troops. And finally for the rare choices you can take giants, trolls and doom divers. The Giants and Trolls just got a whole lot better with access to thunder stomp and stop attacks at the end of combat:biggrin:
I hope that information helps you. Good luck with choosing your army
Skar