Steparu posted the prologue/initial tutorial gameplay for A:IR (from the lead in to the opening of the first CBT which started in Korea). The prologue zone has everyones character starting as a child version of the character they created.
Combat uses assistive (tabbed) targeting instead of action combat (TERA’s action combat is my personal preference so I’m not sure how much I will enjoy A:IR). The TERA influence can be seen in the early flight sequence but the color palette isn’t as vibrant giving the visuals a bit more subdued look. Unlike TERA, most character models skew towards the more realistic versus the fantasy.
The game world does have a day/night cycle which was one of the things that I found a bit immersion breaking in TERA. I’m curious to see if there is some weather included.