vivo has just sent us an invite to an event it's holding at MWC 2020 in Barcelona on February 23. As you can see from the image we've received, there are absolutely no details about what we should expect to be unveiled at that event... that is, unless you take the big "v" to mean a foldable smartphone of some sort. On the other hand, it could just be a stylized version of the "v" in "vivo", so it's all up for debate. Even with no more details or clues, it's important to note that vivo isn't present at MWC very often with such events, so if it's putting on a show we're expecting it to...
Source: https://www.gsmarena.com/vivo_is_launching_a_new_smartphone_at_mwc_2020_on_february_23-news-40687.php