I did not need emoji's, groups, gifs and all the other neat stuff that signal has introduced throughout the years(to varying degrees of success). I had been using it, while none of my friends were. What I did need was a single messenger to handle sms/mms with the default being secure when security was available. I have multiple friends now using it and sadly will revert back to a 100% insecure messenger for my phone for 99% of my messages. The new one will do everything better than signal does except security, so it will have some benefits.
I will be on the lookout for a replacement. I hope signal continues to bring security for entities that need it through the future. I have not looked at tox in a while. I'll check that out again.