I'm pretty sure the screen will be at least 5.7". Look at these - http://tieba.baidu.com/p/5327701641 - Nokia 2 has a 4.7" screen and a LOT more bezels. Also hoping for a 16:9 ratio.
what has appear in GFX was a Nokia 8 with Oreo, not Nokia 9. please read the model numbers to make sure.
also this pictures are made by a fan, so its only a FanArt :\
made by @WaqarKhanHD
AT 600 Euros it would be selling like hot cakes, not too sure about 750 Euros though