Unfortunately no they don’t @wizzer . I asked my onc the same question about data in long term effects and the response I got was pretty vague. It’s clear that there are massive gaps in data/research on this issue, which is why I am more comfortable trusting in my own judgment in this.
I have a family history of heart disease , osteoporosis, autoimmunity and various cancers other than BC (to my knowledge, I’m the only one with this particular critter). My mother had endometrial cancer (probably secondary) following Hodgkin lymphoma in her 20’s, so with my own gynae history not being great either, we have ruled out tamoxifen. That was actually the oncologist taking that off the table. She said it was too risky.
So, for me, I felt I was best placed to decide this. And, infact, in my case I think I probably have a better idea of what my own body can handle. And, given my own genetics, it’s a balancing act as to what’s more likely to get me first 
I’ve always felt a bit like a ticking time bomb, truth be told. So, I’m always vigilant. And I think that’s so important for us all. You know your own body.
As to the predict program: it’s very easy to do. Get it up and just follow the instructions. You’ll be asked to put in your tumour size etc and a few other details from your pathology etc and then just hit ‘enter’ and it will bring up your recurrence risk, for surgery alone / surgery & radiotherapy/chemo/and AI’s (adjuvant therapies). You can play around with it and use the toggles to look at diffrent options (including over 5 or 10/15yrs) as well. It’s an interesting tool.
The fact is, for most of us with oestrogen positive bc, the prognosis is pretty good to outstanding frankly. But, it comes down to your individual risk and that is very individual to you. How big the tumour was, how aggressive it was, HER2 status, etc. they all play a part in determining your recurrence risk, along with your genes too, so it’s worth looking at it.
We need all the info we can get in order to make the best choices.
I think the risk, for me, of heart disease and other autoimmune issues, on AI’s is an other important factor in my decision. But I do wish there was more clear evidence of other risks out there…
I while ago, on one of my late night insomnia episodes I went on the hunt for stuff like this and found a resent American study/paper that did touch on the risks of AI’s long term. And whilst it did note the distinct lack of research on this subject , it did reference the possible over prescribing of both chemo and AI’s. It’s definitely something that needs more research, but that doesn’t help those of us looking for answers today does it.
If I can find it again- I’ll post a link for you 
Good luck