Pokémon Go new features or updates expected in 2019

[Branebs]

Niantic are working on new AR features that we could get in 2019:
https://pokemongohub.net/post/news/discussion-niantics-new-ar-development-progress-and-real-world-platform/
This is an article from Pokemon GO Hub which speculates about new features that could be implemented from main series games:
https://pokemongohub.net/post/speculation/main-series-features-that-can-be-implemented/
Also, I’d like some new items to be added:

New items in Pokemon GO (poll and discussion)

Which new items should be added in Pokemon GO? Choose up to 7 items. poll

Especially Lucky Raid Pass:

Lucky Raid Pass - a new item that could solve raid problems for solo and rural players (idea)

As you all know, when you are a solo or rural player you can’t win raids higher than tier 3. This item would solve that problem and it would make legendary raids achievable for everyone. Lucky Raid Pass would make the timer in raids disappear and you would have all the time until the raid finishes to beat the raid boss. So if you come early, you would have 45 minutes to win the raid. If all your Pokemon faint, you revive them and continue from where you left. Lucky Raid Pass can be used only onc…

And a new type of weather:

What should Niantic do with rainbow weather? (poll and discussion)

Rainbows bring good luck. Like the pot of gold at the end of the rainbow. So there should be something special in the game when rainbow appears. What would you like to happen in the game during rainbow weather? poll

And one more thing: I’d like Team Rocket to appear in Pokemon GO.