I weaned my toddler a couple of months ago, when he was about 18/19 months old, as I was pregnant and to be honest had had enough, and have never wanted to tandem feed.
The new baby is due in Sept, just after the toddler turns 2. Is he likely to have forgotten about bf by then, and forgotten how to latch? People have said that sometimes the older kid can want to start again, but I really don't want that!