I'm sure that they will fix those being produced and based on their findings, offer repair or replacement as appropriate for existing owners.
They've made good in this manner on other products in the past (x3 footswitches, x3 usb, for example)
I'm sure that Tony will be happy to reassure you and make any clarifications or corrections to my statement when he sees your post.
Count me down, too - I'm a new L2T owner with this same rattle issue. I had it replaced already once by the dealer but the replacement has the same issue. I have the rattle between E and G chords/notes on the guitar at almost all volumes. F seems to be the worst. I would like to know that Line6 will take care of these already purchased speakers when they find the fix before I decide to return or keep it. Actually, I was hoping to buy a second one this month buit, so far I can't tell what support you are offering other than admitting the problem exists. Are you planning a refund/recall or fix for any speaker that has this issue or will the fix only be for new ones manufactured from now on? Any help nor information would be appreciated. thanks