Out of curiosity, what kind of "undiscovered territory" were you thinking about?

As posted by me before:

a) USA. Very little taxes in trade with the EU already. Little to gain with FTA.

b) Canada? Okay, but the UK has this Free trade agreement (FTA) already via the EU.

c) Mersocur? FTA to be signed with the EU soon.

d) Japan und Korea? Have FTAs with EU

e) India? Very demanding. Also want easier immigration to the UK in a FTA. Prediction: Will fail.

f) Australia? Ok, easy to get. Point for the UK

g) China? Possible. But only goods, since China loves to export goods. Financial services? Forget about it. Also, trust me, the Chinese have not forgotten the Opium war. Also the recent Ship of the Royal Navy in disputed waters did not help.

h) Africa. Many (economically) small countries. Not all countries have ties to the UK.

i) Russia/CIS. This the UK could get but this they don't want.

So?