Bastion is getting a massive makeover in Overwatch 2. New alternate fire (being changed from Self-Repair), new ultimate, and a massive buff to its Sentry Form.  Overall, I think this makes Bastion a force to be reckoned with. Offensively he is much more potent (and therefore viable), however, the loss of its ability to Self-Repair seems like a suitable way to balance its new capabilities. Another thing worth noting is its newfound ability to move while in Sentry form. Even though a cooldown is being added to his Reconfigure to balance this, I don't think it will be enough. Sentry form in itself is such a powerful tool that I'm worried that allowing movement in this configuration will make him just a bit too strong. That said, there's also the 5v5 layout of Overwatch 2 to consider. With each team only having a single tank, there's less protection for damage and support heroes overall, so perhaps it's a good thing Bastion can now move in Sentry form to compensate for less protection. The removal of its Self-Repair already takes away a great deal from its defensive capabilities, so I suppose it's only fair that Bastion gets more in the form of a portable gatling gun.