ok see here is my problem with harry being a horcrux, its jsut so uncreative. if rowling ends up doing that ill have lost some respect for her as a creative writer. it would be the easy way out to make difficulties for harry, we know alreayd that harry would sacrifice himself if that was the case so it just to anti climatic if you know what i mean. i sure the idea has crossed her mind but here is how you can tell when an idea is uncreative, if half the internet comes up with harry is a horcrux like 3 days after the book came out then it too obvious. rowling really need to think up something good for the last book, you guys seems to really like the hogwarts idea, again i think its neat but its still an easy way out, its too predictable. i think its going to be one, due to the fact that rowling said you could pick one out with careful reading, and i think that was the one she wanted people to pick out, hopefully she does something good or very symbolic for the others that are left.
grphendors sword will not be a horcrux mark my words it will not be one, i think that was made clear in book 6, remember all the horcruxs would have been made b4 harries parents died. And i would bet money seeing as how smart voldemort is that all 7 were made b4 he came to power and started his war on wizard kind. proof of this already look at all the things that have been horcruxes so far, the book, made while at hogwarts, the ring aquired when he was at hogwards and probably turned into a horcrux after a time. in fact that might have been voldemorts whole purpose of working at B&B to find locate and keep track of items to use. you dont go to battle without armor thats what makes me thing that all of the horcruxes were made and hidden long b4 even the first wizard war started.
as for the next book there are so many things i am doubting i think harry will only destroy 1 or maybe 2 more horcruxes RAB will get the rest, and i am also very interested in seeing the time period that the next books takes place over, whether it is your standard year or maybe more. also will it take place right after book 6 i am inclined to think that Rowling might shake itup for hte last book at start further into the future and have harry recount a bunch of events in the first chapter of the next book.