new proposal for income please guide

i am from Pakistan 35 years old,
my to-be wife is 26 UK born English,

she is a school teacher earning 1800 pounds a month and teach some private tuition's too and have her own home,car and savings.

her school salary amounts 21000 pounds a year.
she is private tutor too,but tuition income is not permanent as school teaching job and income is permanent.

will they count only permanent income or tuition income will be countable too?

will 21000 a year be good enough under new proposal?

second she is coming to marry here in Pakistan December or February.

will this new proposal be applicable as it is declared or WHEN this new conditions will be in effect?

will 21000 income will be appropriate for her to sponsor me as spouse?

when we should apply?

when this new condition be in implemented and will be effective?

kindly advise me
regards

These are simply 'proposals' and may never be implemented. Any advice at this stage would be pure guesswork.