1. This is a desirable change because it would be useful to be able to review cards while waiting.
But on balance I was against adding this because:
a. It makes it far more likely that the player will not see what has happened while the opponent carries on.
b. It had the potential for some annoying display glitches.
However, I'll review this again and see if it can be added as a feature for the next update.
2. I think this is an unlikely change for the game because of the risk of introducing overly-powerful 3+card combos that can lead to "everyone uses the same deck" syndrome. But, as always, we reserve the right to change our minds on that at a future date, but I think it unlikely :)