ALRIGHT we got here some big news today, but some news that was rumored to be in the making - the long awaited SC2 series of updates, Machines of War.
Alright, so a quick summary of what is revealed so far - A Starcraft themed series of updates like the series of diablo updates we had a year or so ago. There are 2 new starcraft maps in development, Alarak, the tal'darim that helped artanis in LoTV (he's still an asshole), Zarya (doesn't fit starcraft theme but oh well, they probably want more overweight heroes in the game) and starcraft-themed skins.
So Onto the maps.
Both maps have sc2 themed creeps - Marines are archers, ghosts are wizards, and marauders are melee
Braxis Holdout - A 2 lane map where the objective is to hold cages long enough while they fill with zerg, and then release the zerg on the enemy teams base.
The merc camps are infested terran, but I would guess the siege are the goliaths and raven, while the siege is the firebats. This is neat, since we never have had siege camps that have had more than 1 type of unit in it, and ravens can cast hunter seeker drones. The boss is an infested viking, and looks like it will be the first ranged boss as well
Warhead Junction - A three laned map where the map objective is to collect warheads. From what it looks like in the video, whoever has picked up a warhead will be able to nuke anywhere on the map when they get within range. What happens if they die while holding one, I do not know. All I know is that we will need to take sacred emu missions to this extreme when given the chance.
Siege and bruiser camps are the same, except they don't look infested before you capture them like on the other map.
Bosses, however, are better. They are slivans. I have a love of slivan due to..reasons so I am happy, except I am dissapointed they dont hatch a million eggs while walking down lane, but atleast they still jizz everywhere.
Onto the new heroes announced.
Alarak, The douchebag who sort of helped you in lotv
It isn't said in the video, but I think he is going to be a warrior. It's possible that he may be an assassin, though, since he doesn't seem to have the qualities of the other warriors and more of an assassin like the butcher. I will probably pick him up since I like that he has a pull-in and a silence, so when he can get to mages he will probably be able to kill them. I think his one ult is also the first time we have seen a counter attack spell in the game, so I wonder if all damage he takes during the channel time is just absorbed or if he will actually take the damage, but if it does absorb the damage, it will be a great counter to trigger-happy limings, jainas, KT's, and if timed can probably 1 shot a chromie if in range and you take the full force of her combo.
Zarya, the character added to overweight to please the feminazis

(searching zarya came up with porn on the first few pictures.....)
Nothing really knew with her, since blizzard is determined to make overwatch characters in hots be carbon copies of them from overwatch. But they actualy didn't give her an ult pre-10 like tracer, so blizzard isn't absolutely stupid. She is a simple characer, and requires reflexes. Her q is her alt fire from overwatch, her w is a shield on herself, and her e is a shield on someone else. BUBBLES. But they gave her 2 ults, one is the same as overwatch, and the other is actualy the complete opposite, where enemies cannot actualy move through it, it pushes them away and out. They both seem good, but for most purposes graviton surge is probably going to be the better one. When I saw it I just thought of comboing it with gazlowe since it looks pretty easy to land, and you won't need grav-o-bomb on gazlowe if you want to combo it with gazlowe. In general, I think zarya would be good with gazlowe, or other AOE heroes, but with certain builds you can get gazlowe bombs to stun for ~5 seconds if timed correctly.
Also, ultralisk butcher, shitty kerrigan skin, robot bears.