Looks alright,a little bit of burn and leaf curl but that’s nothing major just keep an eye on your feed strength. There’s a few factors that play a role in how much a plant will stretch when flowered light spectrum (more stretch with a red spectrum vs a blue one),distance from light to canopy,genetics,nutrients and temperature difference between lights on and of ( bigger the differential the more stretch between nodes) didn’t really answer your question but if you know what causes it you can control it better and use it to your advantage. I’d say it’ll roughly grow 1/3-1/2 but that’s just a guess