It seems to me that, for the most part, the aggro decks in the new standard format will be white-based, generally also with Red, often with Black. Which leads us to our starting point here, an update of Mardu Vehicles: https://www.mtggoldfish.com/deck/548489#online
The thing about this deck is that it didn't get tons in the way of improvements - the mana is certainly better thanks to Spire of Industry, there are a couple cards added that are nice, notably Shock - but overall, things really seem to be overwhelmed by the loss of Smuggler's Copter. This leads me to want to look in somewhat different directions. Including:
This one is a very vehicle-based deck. It utilizes Siege Modification, Peacewalker Colossus, and Start Your Engines to try to get mileage out of vehicles with a pretty low creature count. Ultimately, though, I think this, too has to be a bit too gimmicky and fragile of a deck to really be competitively viable.
I'm more interested in a different variation on an old deck of mine that got some help with Aether Revolt: https://www.mtggoldfish.com/deck/540421#online
Sram is the big deal here, though obviously I'm only playing a couple copies here. Kari Zev and Shock also both make appearances, and because this deck was built more on equipment than Copter, that loss is lessened - though I still don't expect this deck to be good except as a metagame call.
The other big direction that aggro decks can take is in a Humans flavor. For that, I've brewed up a Mono-White Version: https://www.mtggoldfish.com/deck/548255#online a WR version: https://www.mtggoldfish.com/deck/548403#online which is probably best, and also a WB version: https://www.mtggoldfish.com/deck/549141#online . In all cases, the deck is significantly helped out by the addition of Metallic Mimic set to Human, which helps keep the artifact count high and give a desperately needed extra 'lord'. This also works well with Hanweir Garrison and Hanweird Militia Captain.