Do you think I’ll get this job?

Basically, last summer, I spent 10 weeks working in an Insurance company. I was 17, and got the job from my uncle whom asked Arthur ( my boss) if there was any positions in administration for me. He kindly gave me the job. I was brand new and had no clue what I was doing.I was trained , and they were all so so kind to me, especially my boss. He constantly told me not to worry if I didn’t get the job done etc, and didn’t mind if I didn’t do something right. I loved working there so much. On my last day, my boss and my team took me out to lunch to say goodbye to me and also they gave me a card and voucher. I was so happy, and gave each of them a written thank you card and chocolates. My boss mentioned once ‘ we could teach you more stuff if you’d like to come back next year’ ( he said this in passing. My mom even took my boss out after I finished the job, to tell him how grateful she was for his kindness in hiring me. While in administration, I was taking the woman who was on maternity leave’s position. When I left, I briefly remember my boss telling them that someone new is coming in. About four weeks ago, I wrote a letter to my boss, asking him if it were possible to get a job again this summer. I told him how grateful I was etc, and also that I would work harder etc. I haven’t heard from him since I sent it about a month ago, so my uncle who works with him asked him yesterday. The reason he hasn’t replied is he is so busy at the moment, but will ‘ deal with it
. My mom said I haven’t necessarily got the job, but it is hopeful. So i have to wait till my boss will ‘ deal with it’. Does it seem likely I’ll get the job?