Possible problem with future ascended gear
The question that results from this is what will happen when armor and weapons are released. Their upgrade slots are used for runes and sigils respectively. If anet does not create a second upgrade slot for ascended armor and weps specific to the infusions then they risk either removing the ability to use runes and sigils for ascended armor, or force conformity where specific runes will be build into the armor sets with no ability to change them.
It was originally suspected that this is why they started with jewellery accesories – to give them time to update the code to support two slots (they admitted they had a problem with that) before armor and weapons are introduced. On the other hand, seeing as they are limiting build options across the board, it’s entirely possible that they will just give us hardcoded rune/sigil equivalents that support only a very limited number of builds.
Remember, remember, 15th of November