This could be a fantastic addition, no more will new players become frustrated with cRPG being too hard and no longer will people have indefinite opinions; settle who does more damage on the bots!
Sorry if these have been said but I didn't have enough time to read the posts.
I think these could make worthy additions
Various difficulties of bots with differing items
Ranged targets
Bots with different strategies (classifications of bots; heavy cavalry, light archer etc.); eg. moving bots, feinting bots, blocking, chambering?, shield users, ranged users, cavalry, differing armors
Reports on damage dealt with damage, speed bonus, armor reduction, possibly state possible damage that could have been dealt through random elements (if applicable, sorry but I know very little about how damage is calculated to be honest haha)
Bots that do no damage nor deal damage
Ability to cancel duel at any time
I know this one will probably be frowned upon but maybe grant a gold/xp gain for combat against bots? Being an Australian I get very frustrated at having to play on an NA server to gain gold/xp due to the fact that people are very often simply not on cRPG!
Possibly have a few basic "classes" that could be loaded to test different builds quickly, with the ability to check their stats and items (possibly like the native class selection and the cRPG "c" key stat menu?)
Possibly custom appearance for bots to take your anger out on a bot-version of someone ;)