1. Suggestions: Hopefully they will appear after next suggestions update.
2. Contributions: Your contributions count was updated. But old contributions will remain in the link RJ is providing.
3. Thank-Yous: The 1593 Thank-yous you received (before the merge) for your old contributons were copied to your new "Thank-you feed", but showing the date you merged the profiles (26 Jul 2018) instead of the date they were given.
After the merge, "Thank-yous" you are receiving for your old contributions are added to the "Thank-You Feed" on RJ's answer.
There are links to your old contributions and Thank-yous received for your old contributions in your old G2G profile.
Another matter to be taken into account: You will not see the list of "Pending merges initiated by me" that you initiated using your old ID, they are here:
(I merged my profile more than one year ago)