Don't panic. It's not here yet. But 2018 is coming. If you're looking for diary/calendar pages for next year for the Filofax Pocket format, you might want to look at these layouts, which are free to download and print yourself at home.
Although you'll still find the source files on this site to produce your own diary sets for any year (or any shorter period) people seem to like the convenience of downloading full year sets. Here are Pocket sized sets for 2018. I've already posted A4 and A5 sets and Personal sets.
Day per pageDay per page minimalist: Word file PDF file
Day on two pagesOriginal day on two pages: Word file PDF file
Two days per pageTwo days per page (unruled): Word file PDF file
Two days per page (ruled): Word file PDF file
Week on two pagesWord file PDF file
Month per pageOriginal month per page: Word file PDF file
Month on two pagesOriginal month on two pages: Word file PDF file
Each file is set up as an A4 document. Print this double-sided. If you have a duplex printer, set it to flip on the short edge. If you don't then you'll have to print odd-numbered pages and then refeed to print the even-numbered pages on the reverse. You might have to experiment to find out how to refeed the paper.
On one side of each sheet you'll find crop marks. Use a craft knife and a steel ruler to release the Pocket pages and punch them. The templates are set up with mirrored gutters to accommodate the holes.
If using the PDF be sure to set it to print at full size as explained here.