Multiple times if I remember correctly. As it is a movie I think they will avoid using the same footage multiple time, so they will either make it the other guardians kill the enemy or they will have life-time attacks. Both would be cool. There is not a major battle during the first part, so they might keep the Trio alive for the end of it, or adapt as is. There will still be a cliffhanger if they follow the manga. As a two partee that won't have a year-long gap between the two parts, at least if they keep their word for both to be released next year, a huge battle won't be that necessary.
Now that I think about it, there is a good think about them changing the format. As it was established to get season with episode per chapter pacing, it is more exciting now that we don't know wgat to expect. It is similar to the art changing every season. It is at first glance jarring inconsistency, but it also keeps everything exciting and fresh and people don't know what to expect. The day they drop a trailer will be so exciting. Seeing the new designs in motion, sampling the new animation. Pribably even show some hints about the story direction. It might be just a 30 second trailer but it will mean a lot.
Likes:
FloraKiraraHime