These are obstructed view (7A) cabins but on the deck plans the lifeboats appear to only obstruct a very small portion of these balconies. Has anyone ever seen these balconies on any Spirit class ship to confirm this?
I've stayed in 4117 and I can tell you that you can't tell "for sure" whether the view will be obstructed or not, by looking at the deck plan. I'd guess that your cabins stand a pretty good chance of having a relatively unobstructed view, since they are on the end. My cabin, 4117 had a pretty good view, with only a slight obstruction, by the nose of one of the lifeboats. Those are all excellent cabins IMO, and I'd recommend them in a heartbeat!
The lifeboats/tenders will only block your view up to the balcony railing. How much of it will be obstructed depends on the location of the lifeboat/tender. Here is a photo of cabin 5165 on the Legend.
Norwegian Pearl 12/19/09
Carnival Miracle 12/23/08
Carnival Legend 4/1/07
Carnival Liberty 1/1/06,11/21/06
Caribbean Princess 5/28/05
Norwegian Wind 3/20/04
Carnival Legend 12/20/02, 3/18/03
Carnival Fascination 11/1/02
Carnival Victory 3/17/02
Carnival Triumph 3/17/01
RCI Majesty Of The Seas 1/5/01
Carnival Ecstasy 1/15/99, 2/04/00