OK, a more serious answer.
My kids hated them anyway.
-not let my kids eat junk food
Fine. Maybe. But you will find that when you are stuck, for example, in an airport for three days due to snow that you may have to relax this one. Also you will probably won't them to attend parties at soft plays, etc. A good overall aim if you don't take it too far.
-no disney
I think this is a shame. I don't think all Disney is good. But banning Bambi? And Fantastia? Seems a waste.
-no barbies/bratz
Ha ha. I thought this one. Then my DD arrived. And she loves the things so much that many school mums have given her their own collection of clothes from the 60s, 70s, 80s. She gets so much pleasure from dressing Barbie and herself and all her soft toys, I honestly think she might end up a fashion designer - even if just of her own clothes.
-extra homework most evenings
I commented on this earlier. I don't think you should plan on this till you see the volume that arrives home. My kids know that in order to go on the Wii, etc, they will get tasks to do first. Sometimes this is homework, sometimes it is half an hour in the garden, sometimes it is practice violin or read a book or make up a song for me or play a board game. Keep flexible, aim for a range of activity.
-chidren will learn another language
Good plan. I do expose them to other languages. Wish I'd done more to be honest, didn't really work out that way, but wish I had pushed it further as I speak three myself.
-same with musical instrument
Good plan. They may hate it of course, but good to at least start.
-computer games/tv etc limited to weekends
Yeah, within reason. My kids hardly watch any but if they are home sick, or jet-lagged, sometimes TV is all that will do. Equally, when a play date goes pear-shaped, sometimes it is a life-saver! Moderation and flexibility in all things...
-to grow vegetables with my DC
Good plan. They'll love it. We're the opposite of green thumbs here but can manage cress and potatoes!
-take them to museums regularly
Good plan. They'll love it.
-read with them/to them everynight
Good plan. They'll love it, don't fret if they are over-tired one night though. Also suggest audio books in the car and the bedroom. Fun kids radio over breakfast. Books on the tube.....
-cook with them regularly
Good plan. They'll love it.
-To say no and mean no and have high expecations of behaviour at all times.
Yes, in theory. BUT you need to listen to them as well. Yesterday, my kids had a huge bubble bath during the day for fun as it is half-term. So I said "no" to another bath at bedtime. Tried to mean "no" as well, till DD pointed out that she had sneezed all over herself and would really like to wash it off.....