You may not be aware, but proposals contained in UK Budget Statemments are applied immediately and, should the final legislation be modified, adjusted at a later date.
Rosebank UK Ltd have the following summary regarding resident non domniciled individuals:
'The United Kingdom offers an attractive tax regime for those individuals who are resident in the UK but do not have UK domicile, such individuals are often referred to as ‘resident non-doms’.
An individual who fulfils the criteria, and who has foreign income and/or foreign capital gains, can elect to be taxed in the UK on the advantageous remittance basis of taxation. Under this scheme the individual can elect to pay a fixed annual charge, currently £30,000 or £50,000, known as the remittance basis charge.'
To reduce taxation as a resident non dom you would have to pay the remittance annual charge of at least 30K and, furthermore, not have any of the trust fund moneys available for you in the UK.