Yes, of course (I am 99% sure… not 100%)
Within a /etc/openhab2/things/KNX.things file you can set up as many Bridges as you want.
Look at my example (using 1 Bridge here: KNX1 to KNX2 Migration Steps )
You can copy the first Bridge and define a second one. All other stuff (Things and Channels) go under the Bridge.
Note: Since I haven’t implemented such a redundant scenario… I really do not know how the KNXv2 binding openHAB2 will decide which Bridge to use to send the telegram… 