HI Prof David,
sorry I missed your message. The citizenship approval takes 1 - 2 years. Please note it is not as simple as getting your kids the citizenship after your naturalisation. It can’t be done like that. They won’t be able to get their citizenship just because you become a citizen. I can’t stress enough that getting citizenship is not as easy/ simple as some of you think. And it is not a automatic process that when the parents become a citizen, their kids under 18 can become a citizen without cause. The process is not that easy, especially if you/ your family are not living in Portugal.
I suggest all my clients to have their kids applying for the GV as well. And even with GV, it is not easy for kids to apply for citizenship if they don’t live in Portugal, but it will be easier, because they have at least 5 years of residency.