alright brotha..
sorry to hear about the plant getting knocked over.. thats a bitch.. i keep my dogs well away from my grow or they would eat everything... plus i cause enough havoc in my grow room.. lol dropping lights on plants and shit.. i had a rough grow...
it looks like, more than likey, your girl is done for... i doubt she will come back from that.. but if she does i would let it go... here is why..
there is a chance that it will hermie.. but it isnt a for sure thing that it will... if the seed genes aren't strong enough there is a chance it could turn and show both male flowers (pollen sacs) and female flowers (buds), and in the end self pollinate... but again its not guaranteed that it will... but you'll know its a hermie if you see both of those... or you start seeing things that look like bananas growing out of the flowers.. if you remove the sacs when you see them there wont be any pollination that can take place... so just keep an eye out..
in order for a strain to hermie in the first place a few things have to be present.. first you have to have weak genetics... the stronger the female the better... secondly the plant has to have hermie tendencies buried within their genetics as well... now traits, like hermies, can be buried deep in the genetic line and may not show for a few generations.. so again, this is another reason to let it go should it respond and come back.. the hermie trait may not show (if it is present at all anyways) in this plant anyways..
the best way to limit the problem with hermies is to buy fem'd seeds... i'm sure you will hear people say that fem'd seeds are made through hermies and stressing and yada yada... i was one of those people until i met the right people who set me straight... if your interested i will explain how fem'd seeds are made.. but you have nothing to worry about with hermies and males... well you have less than a 5% chance that they will be male or hermie... so its worth the purchase and extra money..
if you go to clone that plant (should it make it) and it does hermie then the clones that you would take are going to be hermies too.. so until you know you shouldnt clone it (you can take clones as late into flowering as you want.. it just takes a longer time to root them since they have to revert back)..
as far as the side shoots go its somewhat too late to make anything happen to your girls to grow out the side shoots... tieing the top of the plant over can sometimes stimulate lower branches to grow upwards during flowering.. but you should do it asap to increase the chance of it happening.. otherwise its sorta too late..
as far as bud production.. there is almost no way of saying what you'll end up with.. it varries a lot from strain to strain.. genetics play a big part.. there are just a lot of factors that play into it... but i would say a 1/4 to a 1/2 per plant probably...