I didn't say that you need to change the second half of you sentence accordingly

I shall be seeing John tomorrow.......I'm definately seeing John tomorrow... I could be seeing John tomorrow... There's a possibility but it's unlikely. I might/may be seeing John tomorrow.... there's a possibility, I don't know for sure. I would be seeing John tomorrow - (second conditional continuous, so you need to us an if clause in this sentence) if I had more time. Second conditional hypothetical situation - I won't have time. All these sentences work but they all have different meanings, I hope that I've managed to clarify them to you.....:D

Hi sugarbear. I visited this website and ran a search on the word “shall.” The search engine showed many excerpts containing this word. It is a good way to see how certain words are being used by contemporary writers of American English. Thanks! It does look like “shall” is still used in formal writing such as legalese, discussion of biblical topics, and stating strong political belief. In daily life informal settings, “shall” can also be seen used in short requests such, “shall we go” and “ let's cut the crap. Shall we”? Thanks Again!!

According to http://corpus.byu.edu/coca/, shall is not dead in American English; and, there are people under 60 (like me!) who still use it. IMO, shall is most frequently used in famous quotes (The meek shall inherit the earth; who shall remain nameless), formal or polite language (legal or scientific papers, business), and to request agreement (Shall we go?). Along with these, I also use shall for sarcasm (Shall I continue?--after being interrupted).

Hi Aileen, you are very welcome. I am glad that you think my response is helpful. We learners should help out one another. :)