if you cannot get medicals done CIC will hassle and likely eventually make you essentially sign a statement saying you understand the child cannot be sponsored in the future...
if you do this and before landing, the medicals somehow become available, you should send them in and ask for them to be included in the file due to a change in circumstances and request the letter of non-admissibility withdrawn.... technically it would likely be up to the discretion of the IO to actually physically remove the letter and include the medicals of the non-accompanying child with the file, and then possibly re-evaluate based on new circumstances... (especially if the letter you include is unclear)
but i think as long as you have documented proof of these communications, future sponsorship should be an option.... make sure the child is listed on/with the COPC when received as a non accompanying dependant, if they are not, it's probably best to get it sorted out prior to landing to avoid having to jump through more hoops in the future...
it's best to try with all reasonable efforts to get the medicals done PRIOR to sending the applicaiton since it saves signficant back and forth with the office, some offices are stricter than others and will repeatedly ask and even reject a file when the medical is not included, even if the applicant explictedly states that the other parent will not comply...
if you do this and before landing, the medicals somehow become available, you should send them in and ask for them to be included in the file due to a change in circumstances and request the letter of non-admissibility withdrawn.... technically it would likely be up to the discretion of the IO to actually physically remove the letter and include the medicals of the non-accompanying child with the file, and then possibly re-evaluate based on new circumstances... (especially if the letter you include is unclear)
but i think as long as you have documented proof of these communications, future sponsorship should be an option.... make sure the child is listed on/with the COPC when received as a non accompanying dependant, if they are not, it's probably best to get it sorted out prior to landing to avoid having to jump through more hoops in the future...
it's best to try with all reasonable efforts to get the medicals done PRIOR to sending the applicaiton since it saves signficant back and forth with the office, some offices are stricter than others and will repeatedly ask and even reject a file when the medical is not included, even if the applicant explictedly states that the other parent will not comply...