A few suggestions...
Don't get too quick to choose a particular bike for a couple reasons.
The best bike choice will depend on many factors depending on gear and route choices. Also, the ideal bike really isn't the make or break thing on a bike tour. Most bikes can be made to suffice for a given tour. A tour really isn't all about the bike itself. The bike is important, but before, during and after a tour I never really think all that much about the bike itself. The ride, the people, and the places are what it is about.
There may be an ideal bike for you and for your touring style, but picking the bike too early in the process is likely to result in the wrong choice. I'd suggest either stick with what you have or wait until you have some other things sorted out before choosing the bike.
With that in mind the process you might consider something like this:
- Choose your touring style. Motel, heavier camping, ultralight camping, etc...
- Decide on and gather the gear for the style you choose. Give a lot of thought to what you carry and minimize the list.
- Considering the gear choices and the route, decide on the baggage type that will carry the gear. Bikepacking bags, panniers, some alternate style...
- Choose a bike considering all of that.