(1) 3.5mm jack with great audio with low THD (like note 2 to 😎 back but not like poor audio of Note 1, Note 10 lite, A series, m series.
(2) No punch hole or honey drop etc but full screen a small portion may be left to camera , speaker and sensors if under screen is not possible (all should be blackened to match with front)
(3) Notification LED to save power
(4) IR Blaster (like upto Note4) much needed
(5) one model with length less than 150mm with 5x optical zoom and more than 4000mahr battery