all good indicators, but waiting for them to ripen and see flesh is going to really tell us what they are. what can see now is that:
1. few suckers
2. sharp triangular sides of fruit, indicator thick skin
3. mid size for length of bananas
4. healthy fast growing corms, top tier on height
5. leaves near top tier in length (not counting wild bananas)
6. green stem, green leaves, green unripe fruit
7. flower good edible size, more short then long
By the size of the tree I would say the fruits are going to be very fat, thick skinned, nearly black before ripe, starchy. Trim the flower now, and pull off any bottom bunches now if they look smaller than than upper ones.
Do you remember now what kind? or did somebody else plant.
Any help would be great!