The funny thing is that now, under random Parks Blogs about any subject -- could be WDW, the Candlelight Processional, Tokyo, Diamond Celebration merchandise, etc. -- people are leaving comments about Halloween/the Halloween Party and asking about the dates.

So all of the writers (some of whom have nothing to do with Disneyland) are getting the questions about DLR's Halloween festivities.
It's good to see you back here with us again this year, Davidg83! So it's not just the Halloween news that they are delaying. Interesting. Is the medal info normally out by this time?
Are you still at Target? If so, make sure to let us know what new seasonal goodies appear in the store! I remember that last year you got certain things in stock ahead of time, but didn't put them on the shelf until a few weeks later.
Happy birthday!!!!
There are usually Tuesday night parties, with an exception or two. For example, one Tuesday party might be swapped for a Monday party instead, but I don't know if that will happen this year.
You won't have to wait for news from Disney Visa. The Disney Visa people will be able to buy their tickets at the same time the AP holders and Disney Vacation Club people buy theirs -- but you will have to call the ticket number at DLR and order them that way. That's usually the only way to get the Disney Visa discount applied, unless an online system has been set up this year that can apply the Visa discount. So we just have to wait on a blog from the Parks Blog.
The sudden appearance of any changes happening on the Disneyland website generally means that announcements are afoot, and they are gearing up to add in the info to the site. So I think you're on to something. It IS weird that it says September 2014 to October 2015! That's one loooooooong Halloween Party!

I think it's just a mistake. I doubt that the parties would start in October, seeing that they're so popular. Of course, never say never, but I think they should still begin in September. Let's hope!