Yes, Nokia 3310 does have LED flash placed just near to camera.
No. Nokia 3310 do not support 4G and VoLTE.
Yes, you can edit the same. You can crop them. Or you can use different scene filters, while taking the pictures.
No. Nokia 3310 is not a 4G mobile.
There are a few things that do bring back the feeling of owning an original Nokia 3310, such as the classic Nokia ringtone, the physical buttons, the tiny body, and solid build quality.
You can buy other feature phones for less than this, and the new Nokia 3310 doesn't justify the extra outlay over the simple nostalgia card it's playing.