GUARDIANS OF THE GALAXY VOL. 2 TO INFINITY WAR
Nebula left off to find Thanos and somehow kill him by herself. So Nebula will appear in Infinity Wa. I believe Karen Gillian said she wanted Nebula to have a similar role as she did in in tInfinity Gauntlet story, which she was a heavy part of.
But the Guardians team ended up Star-lord, Gamora, Drax, Mantis, Rocket, and Groot. All the actors are confirmed to be in Infinity War, so Chris Pratt, Zoe Saldana, Dave Bautista, Pom Klementieff, Bradley Cooper, and Vin Diesel will all be hanging with the Avengers crew.
On Earth, I hope we see Peter reunite with his Grandfather. Peter's grandfather was seen in vol. 2 in the Earth scene with the Ego plant growing and taking over Missouri. In that scene, Peter may even get an Awesome mixtape vol. 3.
By the time Infinity War roles around Groot will be a full blown adult. By the post credit scene of Guardians vol. 2 Baby Groot grew to a teen, so in four years he will do a lot of growing, he might even be bigger than we saw him in vol.1.
Sean Gunn is also confirmed to be in the film, he is the onset Rocket Racoon, but it doesn't seem like he will be playing Kraglin. So Kraglin probably found some other Ravagers and is with them while the Guardians meet the Avengers. But who knows he might have a cameo in Infinity War.
Other than that there wasn't a whole lot more Infinity War set up in Guardians vol.2. If you are wondering James Gunn is putting in creative input on the film, and he is an executive producer. I would like to hear your thoughts on the Guardians in Infinity War down in the comments below. As always thanks for reading, Happy Mother's day everyone, take care.