Carica papaya 'Thai Dwarf' - Dwarf Thai Papaya

No it isnt is it......

Yes, it's not so dwarf. The last one I grew never grew quite as tall and the papayas were much smaller and looked like a football (an American Football that is)

When will you be able to pick them

Palmate:

For some reason this variety produces flowers and fruit very late in the year. It's still producing new fruit even though the weather has been unusually cold. The big fruit won't ripen until early spring or maybe late winter...it just depends on the crazy weather.

How much bigger will the friut get if it doesn't ripen till spring or has it grown now?

Most likely another 3" (8cm) longer. I think the largest fruits are around 15" (38cm) long, right now.