The phrase "new collection" usually refers to a group of new items or products that have been created and released by a brand or designer. It's a way for them to showcase and sell their latest creations to customers. Full definition
You can easily find a lot of new collection of shades in stores nowadays and it will simply surprise you on how much you miss in one season. (cuded.com)
Do you like any of the pieces from new collection that have been featured? (blogbehindthelook.com)
When cooking up this brand new collection for 2014 we wanted to build a sofa that was generously comfy in terms of proportions yet still retained its stylish look and feel. (outandoutoriginal.com)