Replacing fork and hydraulic brakes
The brake (not break) / fork interface will be standard post mount and is the least of the problems. Adapters are readily availble so you won't have a compatibility problem that cannot be sorted for a few $$. 

The other issues to watch for when switching forks from that era would be the steerer - Talon was probably 1/18th straight, but tapered are now far more common. Its possible to get adapters to fit straight forks into frames built for tapered, but not the other way round. 

You will also need to match your wheel, or more accurately, axle. Likely the Talon had a 9mmQR, forks now comes in many variations of QR and though axle. 

Therefore you want to find a disc compatible fork fork with the same steerer and axle mount as you already have.