There will be a symposium about the textiles in the newly renovated Rijksmuseum Amsterdam in October, with lots of conservators and textile historians giving papers and an overview about the collections. The event will be on Monday 7 and Tuesday 8 October 2013, and involves curators and restaurators from the Fine and decorative arts department, the History department and external ones talking about the selection and the historical background of tapestries, textiles, costumes, kimonos and accessories, as well as about interior textiles which are used in the reconstructed 19th century style room, textile upholstery and 20th century sculpture textile.In addition, there will be lectures on the conservation, research, treatments and preparations that were needed for installation of the objects in the museum.
It does sound like a very lovely event, and registration is now possible
via their website (where you will also find a link to the programme and hotel info). There's not too much information about how much medieval objects they have (and how much they will be spoken about in the conference), but my wild guess would be that the focus will be on more modern textiles - there is
a lot of stunning medieval pieces in their collection, browsable (partly) online. (The English translation does not work for the actual data or the search mask - you can look for wol, zijde, katoen, weefsel, linnen to find wool, silk, cotton, fabric, linen. Or, as I did for the link, narrow down a timeframe via the advanced search.)