Am flying ORD FRA in a couple of weeks in Biz. Noticed that experflyer still shows 7 of 8 free seats in F. not that its an accurate indication, but I'm curious. When I check in for my flight, assuming 7 seats are still free in F (unlikely but you never know), is there an opportunity to purchase an upgrade at check in similar to the upgrades offered at kiosks when checking in on UA or CO domestic flights? It seems everytime I'm on LH, F is full, but wonder if that will be the case this time. I realize that HON's may sneak in at the last minute, but I can still hope.