Blizzard announced the start date and duration of the next Lunar New Year event in Overwatch through a video that also teased a new skin for Ashe and Bob.
Overwatch's Lunar New Year 2021 will start on February 4, 2021, and will go on for three weeks until February 25. Considering it's a three-week event again, it's safe to assume we're also getting challenges that will yield skins at no extra cost each week. The featured heroes are currently unknown.
Only one skin has been revealed thus far - Ashe and Bob are getting a themed visual that turns the latter into a giant, gun-totting tiger.
Currently, there are only the predictions about the remaining skins, one of which correctly guessed Ashe so far . It looks somewhat conspicuous so it's possible the prediction was the result of a leak or data mining but since none of this is official yet, make sure you take it with a grain of salt.
The remaining heroes from that particular list are Soldier 76, Orisa, Baptiste and Symmetra, which would mean the Vishkar employee would be getting a second skin in a really short time period.
One more clue that points to this list being correct is that this is the year of the Ox in Chinese calendar and Orisa is the prime target for a themed skin.
As for potential emotes and voice lines, we will have to wait a couple of days to find out.