Even without any rule changes the 2016 LE season would see 2004 ZX10Rs, 2004 CBR1000RRs and 2004 R1s eligible for LE. Those bikes are not "Lost Era" in the sense that the class is intended to be. They are still competitive in the Superbike classes with current bikes. Changing to a 10 year delay would mean that Luke's Superbike is LE eligible as of now. Seems a little silly to me. I think it would be prudent to consider a future rule change to clearly establish that Lost Era bikes are actually from a Lost Era.
How many of these " 2004 ZX10Rs, 2004 CBR1000RRs and 2004 R1s" have you see at the race track in the past year? Can't say i've seen one.
Sounds like "lost" era bikes to me.