The amount of lineholders projected for the November schedules are the following on the FO side (I'm not going to go count them all to figure it out what the awards were):

BOS: 31-35 Hard/Composite Lines Projected; 14-18 Reserve Lines Projected; 3/10/20 Junior Lineholder Date of Hire for October
CMH: 83-87; 7-11; 2/11/20
DCA: 69-73; 8-12; 5/29/19
EWR: 68-71; 15-19; 2/25/20
IND: 113-117; 7-11; 2/4/20
LGA: 102-106; 40-44; 3/3/20
ORD: 46-50; 5-9; 12/10/19
PHL: 32-36; 2-6; 10/8/19
PIT: 66-70; 1-5; 2/4/20
SDF: 51-55; 9-13; 12/3/19

In any given month, there are usually people who won't be bidding for one reason or another. Medical leave, military leave, upgrades, and new hires not done with training are some of the reasons why people wouldn't be bidding, so the base is always staffed with more people than the projected hard lines + reserves to account for those sorts of things. In general, we like to run a lean operation around here, meaning comparatively few reserves. You'll also notice that often the outstations tend to have fewer reserves than the hubs, because Crew Scheduling can have more flexibility to move crews around in a hub.

Also note that the junior lineholder dates of hire are skewed because of COVID. Even still, the junior composite lines (which basically means you could get most of a full line, but they had to sprinkle in a few reserve days to get you up to the minimum) are after June 2021 for BOS, CMH, IND, PHL, and SDF already. This is the best indicator yet that things are moving really quickly. Expect short reserve times at basically every base.

Lastly, if you're worried about being able to hold a specific base, I simply wouldn't be. For the most current data we have, which would be for the new hires through the end of August, the most senior base was ORD with a 7/27/21 hire. That means it's effectively no more than one month to be able to hold any base right now. That's lightning quick. Classes in September were awarded every base except ORD, that I know of. All subject to change, but with the attrition (we had 96 new hires and 85 resignations for September) we have, things for the most part will continue to be in favor of the quick movement for the foreseeable future.