Class options for Allied Races.

[Blodia]

So with what was revealed so far for the Allied races, which is arguably one of the largest features of BfA, it is quite clear that there will be very little shift in the options available for each faction's "rare" classes.
As it stands now, Alliance will get up to 1 additional Shaman option - possibly Dark Iron dwarves, but it's not clear yet. Horde - MAYBE Zandalari Paladin, although the only real basis for that is the Zandalari NPC's who use Paladin abilities in Throne of Thunder for example. For Horde Shamans are obviously more common, However Alliance only has two options for this class. Despite that Horde does not get clear cut Shaman option (except for still muddy Zandalari) while Alliance gets Lightforged Draenei and possibly Dark Irons (on the same basis Zandalari Paladins are spitballed).
Then, Druid. Both factions as it is now have only two races capable of being Druids - Night Elves and Worgen for Alliance and Tauren and Trolls for Horde.
The currently revealed race/class combos show that the Horde will get one additional Druid race - the Highmountain Tauren. However, it is fairly clear from the snippets of information available that Zandalari Druids with a raptor Travel Form are considered. Therefore this "rare" class, possibly one of the most limited in the race options available, will go completely off balance. The Alliance will still be constrained to 2 Druid options at BfA launch, as it is rather ridiculous to expect Dark Irons to be able to be Druids.

I can't help but wonder how will these class combo issues be addressed, as I don't recall any hints on new classes for existing races on Blizzcon and beyond. Maybe Human Druids? Night Elf Shamans?

[vertigo12]

Kul'tirans might get an option to go Druid *who knows*. There are existing NPC having Death druids as shown in Blizzcon with wicker theme.

[Rukario]

So with what was revealed so far for the Allied races, which is arguably one of the largest features of BfA, it is quite clear that there will be very little shift in the options available for each faction's "rare" classes.
As it stands now, Alliance will get up to 1 additional Shaman option - possibly Dark Iron dwarves, but it's not clear yet. Horde - MAYBE Zandalari Paladin, although the only real basis for that is the Zandalari NPC's who use Paladin abilities in Throne of Thunder for example. For Horde Shamans are obviously more common, However Alliance only has two options for this class. Despite that Horde does not get clear cut Shaman option (except for still muddy Zandalari) while Alliance gets Lightforged Draenei and possibly Dark Irons (on the same basis Zandalari Paladins are spitballed).
Then, Druid. Both factions as it is now have only two races capable of being Druids - Night Elves and Worgen for Alliance and Tauren and Trolls for Horde.
The currently revealed race/class combos show that the Horde will get one additional Druid race - the Highmountain Tauren. However, it is fairly clear from the snippets of information available that Zandalari Druids with a raptor Travel Form are considered. Therefore this "rare" class, possibly one of the most limited in the race options available, will go completely off balance. The Alliance will still be constrained to 2 Druid options at BfA launch, as it is rather ridiculous to expect Dark Irons to be able to be Druids.

I can't help but wonder how will these class combo issues be addressed, as I don't recall any hints on new classes for existing races on Blizzcon and beyond. Maybe Human Druids? Night Elf Shamans?

So...what's the issue exactly? Why do you need the same number of race/classes on both sides, what's the downside of that not being the case? o.O

[Blodia]

Kul'tirans might get an option to go Druid *who knows*. There are existing NPC having Death druids as shown in Blizzcon with wicker theme.

Hard to tell really, those guys didn't look very friendly.